60989788642640 has 80 divisors (see below), whose sum is σ = 166591688449536. Its totient is φ = 20472096883200.

The previous prime is 60989788642631. The next prime is 60989788642661. The reversal of 60989788642640 is 4624688798906.

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

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, 2665626176 + ... + 2665649055.

Almost surely, 2^{60989788642640} is an apocalyptic number.

It is an amenable number.

60989788642640 is an abundant number, since it is smaller than the sum of its proper divisors (105601899806896).

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

60989788642640 is a wasteful number, since it uses less digits than its factorization.

60989788642640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331275268 (or 5331275262 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 77.

The spelling of 60989788642640 in words is "sixty trillion, nine hundred eighty-nine billion, seven hundred eighty-eight million, six hundred forty-two thousand, six hundred forty".