1975075993926 has 160 divisors (see below), whose sum is σ = 5136467888640. Its totient is φ = 555548108544.

The previous prime is 1975075993873. The next prime is 1975075993967. The reversal of 1975075993926 is 6293995705791.

1975075993926 is a `hidden beast` number, since 1 + 9 + 7 + 5 + 0 + 7 + 599 + 3 + 9 + 26 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 142299855 + ... + 142313733.

It is an arithmetic number, because the mean of its divisors is an integer number (32102924304).

Almost surely, 2^{1975075993926} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1975075993926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2568233944320).

1975075993926 is an abundant number, since it is smaller than the sum of its proper divisors (3161391894714).

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

1975075993926 is a wasteful number, since it uses less digits than its factorization.

1975075993926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15840 (or 15831 counting only the distinct ones).

The product of its (nonzero) digits is 289340100, while the sum is 72.

The spelling of 1975075993926 in words is "one trillion, nine hundred seventy-five billion, seventy-five million, nine hundred ninety-three thousand, nine hundred twenty-six".