1157900967912 has 128 divisors (see below), whose sum is σ = 3278582415360. Its totient is φ = 338103279360.

The previous prime is 1157900967887. The next prime is 1157900967913. The reversal of 1157900967912 is 2197690097511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1157900967913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276087 + ... + 1546617.

It is an arithmetic number, because the mean of its divisors is an integer number (25613925120).

Almost surely, 2^{1157900967912} is an apocalyptic number.

1157900967912 is a gapful number since it is divisible by the number (12) 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 1157900967912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639291207680).

1157900967912 is an abundant number, since it is smaller than the sum of its proper divisors (2120681447448).

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

1157900967912 is a wasteful number, since it uses less digits than its factorization.

1157900967912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270703 (or 1270699 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 57.

The spelling of 1157900967912 in words is "one trillion, one hundred fifty-seven billion, nine hundred million, nine hundred sixty-seven thousand, nine hundred twelve".