7153439464 has 8 divisors (see below), whose sum is σ = 13412699010. Its totient is φ = 3576719728.

The previous prime is 7153439399. The next prime is 7153439473. The reversal of 7153439464 is 4649343517.

It can be written as a sum of positive squares in only one way, i.e., 3967740100 + 3185699364 = 62990^2 + 56442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7153439464² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447089959 + ... + 447089974.

Almost surely, 2^7153439464 is an apocalyptic number.

It is an amenable number.

7153439464 is a deficient number, since it is larger than the sum of its proper divisors (6259259546).

7153439464 is a wasteful number, since it uses less digits than its factorization.

7153439464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894179939 (or 894179935 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 46.

The square root of 7153439464 is about 84578.0081581495. The cubic root of 7153439464 is about 1926.8073845623.

The spelling of 7153439464 in words is "seven billion, one hundred fifty-three million, four hundred thirty-nine thousand, four hundred sixty-four".