60639531478 has 32 divisors (see below), whose sum is σ = 93397506048. Its totient is φ = 29519661600.

The previous prime is 60639531443. The next prime is 60639531499. The reversal of 60639531478 is 87413593606.

It is a happy number.

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, 4010713 + ... + 4025803.

It is an arithmetic number, because the mean of its divisors is an integer number (2918672064).

Almost surely, 2^60639531478 is an apocalyptic number.

60639531478 is a deficient number, since it is larger than the sum of its proper divisors (32757974570).

60639531478 is a wasteful number, since it uses less digits than its factorization.

60639531478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 60639531478 in words is "sixty billion, six hundred thirty-nine million, five hundred thirty-one thousand, four hundred seventy-eight".