1974452075776 has 144 divisors (see below), whose sum is σ = 4264067707200. Its totient is φ = 909586022400.

The previous prime is 1974452075759. The next prime is 1974452075777. The reversal of 1974452075776 is 6775702544791.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974452075777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26369271 + ... + 26444041.

It is an arithmetic number, because the mean of its divisors is an integer number (29611581300).

Almost surely, 2^{1974452075776} is an apocalyptic number.

1974452075776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1974452075776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2132033853600).

1974452075776 is an abundant number, since it is smaller than the sum of its proper divisors (2289615631424).

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

1974452075776 is an equidigital number, since it uses as much as digits as its factorization.

1974452075776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74956 (or 74942 counting only the distinct ones).

The product of its (nonzero) digits is 103723200, while the sum is 64.

The spelling of 1974452075776 in words is "one trillion, nine hundred seventy-four billion, four hundred fifty-two million, seventy-five thousand, seven hundred seventy-six".