73060239978 has 32 divisors (see below), whose sum is σ = 177115734720. Its totient is φ = 22139466480.

The previous prime is 73060239971. The next prime is 73060240031. The reversal of 73060239978 is 87993206037.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (73060239971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61497925 + ... + 61499112.

It is an arithmetic number, because the mean of its divisors is an integer number (5534866710).

Almost surely, 2^73060239978 is an apocalyptic number.

73060239978 is an abundant number, since it is smaller than the sum of its proper divisors (104055494742).

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

73060239978 is a wasteful number, since it uses less digits than its factorization.

73060239978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122997059 (or 122997053 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 73060239978 in words is "seventy-three billion, sixty million, two hundred thirty-nine thousand, nine hundred seventy-eight".