1961157752 has 16 divisors (see below), whose sum is σ = 3689153160. Its totient is φ = 977383584.

The previous prime is 1961157719. The next prime is 1961157761. The reversal of 1961157752 is 2577511691.

It is a super-2 number, since 2×1961157752² = 7692279456459387008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396803 + ... + 401714.

Almost surely, 2^1961157752 is an apocalyptic number.

It is an amenable number.

1961157752 is a deficient number, since it is larger than the sum of its proper divisors (1727995408).

1961157752 is a wasteful number, since it uses less digits than its factorization.

1961157752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798830 (or 798826 counting only the distinct ones).

The product of its digits is 132300, while the sum is 44.

The square root of 1961157752 is about 44284.9607880599. The cubic root of 1961157752 is about 1251.7113098258.

The spelling of 1961157752 in words is "one billion, nine hundred sixty-one million, one hundred fifty-seven thousand, seven hundred fifty-two".