7164400857 has 16 divisors (see below), whose sum is σ = 9740575680. Its totient is φ = 4682682432.

The previous prime is 7164400853. The next prime is 7164400879. The reversal of 7164400857 is 7580044617.

It is not a de Polignac number, because 7164400857 - 2² = 7164400853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7164400853) 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, 11763 + ... + 120279.

It is an arithmetic number, because the mean of its divisors is an integer number (608785980).

Almost surely, 2^7164400857 is an apocalyptic number.

It is an amenable number.

7164400857 is a deficient number, since it is larger than the sum of its proper divisors (2576174823).

7164400857 is a wasteful number, since it uses less digits than its factorization.

7164400857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108952.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 7164400857 is about 84642.7838448146. The cubic root of 7164400857 is about 1927.7910472437.

The spelling of 7164400857 in words is "seven billion, one hundred sixty-four million, four hundred thousand, eight hundred fifty-seven".