1974678530454 has 144 divisors (see below), whose sum is σ = 5187430609920. Its totient is φ = 540692379360.

The previous prime is 1974678530441. The next prime is 1974678530497. The reversal of 1974678530454 is 4540358764791.

1974678530454 is a `hidden beast` number, since 1 + 9 + 7 + 46 + 7 + 8 + 530 + 4 + 54 = 666.

It is a super-2 number, since 2×1974678530454² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1974678530391 and 1974678530400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2465637 + ... + 3166815.

It is an arithmetic number, because the mean of its divisors is an integer number (36023823680).

Almost surely, 2^{1974678530454} is an apocalyptic number.

1974678530454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974678530454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2593715304960).

1974678530454 is an abundant number, since it is smaller than the sum of its proper divisors (3212752079466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1974678530454 is a wasteful number, since it uses less digits than its factorization.

1974678530454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701335 (or 701325 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 1974678530454 in words is "one trillion, nine hundred seventy-four billion, six hundred seventy-eight million, five hundred thirty thousand, four hundred fifty-four".