10157121492 has 24 divisors (see below), whose sum is σ = 27085657536. Its totient is φ = 2902034688.

The previous prime is 10157121473. The next prime is 10157121551. The reversal of 10157121492 is 29412175101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60458973 + ... + 60459140.

It is an arithmetic number, because the mean of its divisors is an integer number (1128569064).

Almost surely, 2^10157121492 is an apocalyptic number.

10157121492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10157121492 is an abundant number, since it is smaller than the sum of its proper divisors (16928536044).

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

10157121492 is a wasteful number, since it uses less digits than its factorization.

10157121492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120918127 (or 120918125 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

Adding to 10157121492 its reverse (29412175101), we get a palindrome (39569296593).

The spelling of 10157121492 in words is "ten billion, one hundred fifty-seven million, one hundred twenty-one thousand, four hundred ninety-two".