7151469520 has 80 divisors (see below), whose sum is σ = 18390229200. Its totient is φ = 2569162752.

The previous prime is 7151469499. The next prime is 7151469539. The reversal of 7151469520 is 259641517.

It can be written as a sum of positive squares in 8 ways, for example, as 785344576 + 6366124944 = 28024^2 + 79788^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×7151469520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54445 + ... + 131404.

It is an arithmetic number, because the mean of its divisors is an integer number (229877865).

Almost surely, 2^7151469520 is an apocalyptic number.

It is an amenable number.

7151469520 is an abundant number, since it is smaller than the sum of its proper divisors (11238759680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7151469520 is a wasteful number, since it uses less digits than its factorization.

7151469520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185912 (or 185906 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 7151469520 is about 84566.3616339263. The cubic root of 7151469520 is about 1926.6304975723.

The spelling of 7151469520 in words is "seven billion, one hundred fifty-one million, four hundred sixty-nine thousand, five hundred twenty".