9215861952 has 56 divisors (see below), whose sum is σ = 26600334912. Its totient is φ = 2792684800.

The previous prime is 9215861951. The next prime is 9215862023. The reversal of 9215861952 is 2591685129.

It is a super-2 number, since 2×9215861952² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (9215861951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179674 + ... + 2183897.

Almost surely, 2^9215861952 is an apocalyptic number.

It is an amenable number.

9215861952 is an abundant number, since it is smaller than the sum of its proper divisors (17384472960).

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

9215861952 is a wasteful number, since it uses less digits than its factorization.

9215861952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363597 (or 4363587 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The square root of 9215861952 is about 95999.2809973075. The cubic root of 9215861952 is about 2096.5826469089.

The spelling of 9215861952 in words is "nine billion, two hundred fifteen million, eight hundred sixty-one thousand, nine hundred fifty-two".