1974842126454 has 16 divisors (see below), whose sum is σ = 3949708032000. Its totient is φ = 658276745640.

The previous prime is 1974842126431. The next prime is 1974842126461. The reversal of 1974842126454 is 4546212484791.

It is a happy number.

It is a super-4 number, since 4×1974842126454⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1974842126394 and 1974842126403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198699 + ... + 1997289.

It is an arithmetic number, because the mean of its divisors is an integer number (246856752000).

Almost surely, 2^{1974842126454} is an apocalyptic number.

1974842126454 is an abundant number, since it is smaller than the sum of its proper divisors (1974865905546).

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

1974842126454 is a wasteful number, since it uses less digits than its factorization.

1974842126454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981595.

The product of its digits is 15482880, while the sum is 57.

The spelling of 1974842126454 in words is "one trillion, nine hundred seventy-four billion, eight hundred forty-two million, one hundred twenty-six thousand, four hundred fifty-four".