8901672720 has 40 divisors (see below), whose sum is σ = 27595186176. Its totient is φ = 2373779328.

The previous prime is 8901672709. The next prime is 8901672739. The reversal of 8901672720 is 272761098.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18544912 + ... + 18545391.

Almost surely, 2^8901672720 is an apocalyptic number.

8901672720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8901672720 is an abundant number, since it is smaller than the sum of its proper divisors (18693513456).

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

8901672720 is a wasteful number, since it uses less digits than its factorization.

8901672720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37090319 (or 37090313 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 8901672720 is about 94348.6763023202. The cubic root of 8901672720 is about 2072.4809200062.

The spelling of 8901672720 in words is "eight billion, nine hundred one million, six hundred seventy-two thousand, seven hundred twenty".