89624426640 has 80 divisors (see below), whose sum is σ = 317526546048. Its totient is φ = 20485582848.

The previous prime is 89624426509. The next prime is 89624426663. The reversal of 89624426640 is 4662442698.

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

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, 26672257 + ... + 26675616.

Almost surely, 2^89624426640 is an apocalyptic number.

89624426640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89624426640 is an abundant number, since it is smaller than the sum of its proper divisors (227902119408).

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

89624426640 is a wasteful number, since it uses less digits than its factorization.

89624426640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53347896 (or 53347890 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 89624426640 in words is "eighty-nine billion, six hundred twenty-four million, four hundred twenty-six thousand, six hundred forty".