1925857520922 has 16 divisors (see below), whose sum is σ = 3851990352000. Its totient is φ = 641906621952.

The previous prime is 1925857520827. The next prime is 1925857520927. The reversal of 1925857520922 is 2290257585291.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1925857520927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11380263 + ... + 11548250.

It is an arithmetic number, because the mean of its divisors is an integer number (240749397000).

Almost surely, 2^{1925857520922} is an apocalyptic number.

1925857520922 is an abundant number, since it is smaller than the sum of its proper divisors (1926132831078).

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

1925857520922 is a wasteful number, since it uses less digits than its factorization.

1925857520922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22942517.

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 1925857520922 in words is "one trillion, nine hundred twenty-five billion, eight hundred fifty-seven million, five hundred twenty thousand, nine hundred twenty-two".