72420374512442 has 32 divisors (see below), whose sum is σ = 120374963158464. Its totient is φ = 32400032544000.

The previous prime is 72420374512439. The next prime is 72420374512477. The reversal of 72420374512442 is 24421547302427.

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, 18684293 + ... + 22224840.

It is an arithmetic number, because the mean of its divisors is an integer number (3761717598702).

Almost surely, 2^{72420374512442} is an apocalyptic number.

72420374512442 is a deficient number, since it is larger than the sum of its proper divisors (47954588646022).

72420374512442 is a wasteful number, since it uses less digits than its factorization.

72420374512442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40910414.

The product of its (nonzero) digits is 3010560, while the sum is 47.

The spelling of 72420374512442 in words is "seventy-two trillion, four hundred twenty billion, three hundred seventy-four million, five hundred twelve thousand, four hundred forty-two".