1157630277272 has 64 divisors (see below), whose sum is σ = 2485026816000. Its totient is φ = 495249987456.

The previous prime is 1157630277253. The next prime is 1157630277311. The reversal of 1157630277272 is 2727720367511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157630277272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77847854 + ... + 77862722.

It is an arithmetic number, because the mean of its divisors is an integer number (38828544000).

Almost surely, 2^{1157630277272} is an apocalyptic number.

It is an amenable number.

1157630277272 is an abundant number, since it is smaller than the sum of its proper divisors (1327396538728).

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

1157630277272 is a wasteful number, since it uses less digits than its factorization.

1157630277272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17248 (or 17244 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 50.

The spelling of 1157630277272 in words is "one trillion, one hundred fifty-seven billion, six hundred thirty million, two hundred seventy-seven thousand, two hundred seventy-two".