1957450913 has 4 divisors (see below), whose sum is σ = 2135401008. Its totient is φ = 1779500820.

The previous prime is 1957450883. The next prime is 1957450939. The reversal of 1957450913 is 3190547591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1957450913 - 2¹⁰ = 1957449889 is a prime.

It is a super-2 number, since 2×1957450913² = 7663228153609067138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1957450973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88975031 + ... + 88975052.

It is an arithmetic number, because the mean of its divisors is an integer number (533850252).

Almost surely, 2^1957450913 is an apocalyptic number.

It is an amenable number.

1957450913 is a deficient number, since it is larger than the sum of its proper divisors (177950095).

1957450913 is a wasteful number, since it uses less digits than its factorization.

1957450913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177950094.

The product of its (nonzero) digits is 170100, while the sum is 44.

The square root of 1957450913 is about 44243.0888727268. The cubic root of 1957450913 is about 1250.9221809385.

The spelling of 1957450913 in words is "one billion, nine hundred fifty-seven million, four hundred fifty thousand, nine hundred thirteen".