5640465957 has 16 divisors (see below), whose sum is σ = 8643018240. Its totient is φ = 3205114992.

The previous prime is 5640465931. The next prime is 5640465959. The reversal of 5640465957 is 7595640465.

It is not a de Polignac number, because 5640465957 - 2⁶ = 5640465893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640465959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746503 + ... + 754020.

It is an arithmetic number, because the mean of its divisors is an integer number (540188640).

Almost surely, 2^5640465957 is an apocalyptic number.

It is an amenable number.

5640465957 is a deficient number, since it is larger than the sum of its proper divisors (3002552283).

5640465957 is a wasteful number, since it uses less digits than its factorization.

5640465957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500712.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The square root of 5640465957 is about 75103.0356044281. The cubic root of 5640465957 is about 1780.0751090850.

The spelling of 5640465957 in words is "five billion, six hundred forty million, four hundred sixty-five thousand, nine hundred fifty-seven".