1157947952690 has 8 divisors (see below), whose sum is σ = 2084306314860. Its totient is φ = 463179181072.

The previous prime is 1157947952683. The next prime is 1157947952743. The reversal of 1157947952690 is 962597497511.

It can be written as a sum of positive squares in 2 ways, for example, as 1155347666641 + 2600286049 = 1074871^2 + 50993^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1157947952690² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57897397625 + ... + 57897397644.

Almost surely, 2^{1157947952690} is an apocalyptic number.

1157947952690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157947952690 is a deficient number, since it is larger than the sum of its proper divisors (926358362170).

1157947952690 is a wasteful number, since it uses less digits than its factorization.

1157947952690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115794795276.

The product of its (nonzero) digits is 42865200, while the sum is 65.

The spelling of 1157947952690 in words is "one trillion, one hundred fifty-seven billion, nine hundred forty-seven million, nine hundred fifty-two thousand, six hundred ninety".