74542015730 has 64 divisors (see below), whose sum is σ = 165703442688. Its totient is φ = 23510718720.

The previous prime is 74542015727. The next prime is 74542015747. The reversal of 74542015730 is 3751024547.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126845 + ... + 406415.

It is an arithmetic number, because the mean of its divisors is an integer number (2589116292).

Almost surely, 2^74542015730 is an apocalyptic number.

74542015730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74542015730 is an abundant number, since it is smaller than the sum of its proper divisors (91161426958).

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

74542015730 is a wasteful number, since it uses less digits than its factorization.

74542015730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279891.

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 74542015730 in words is "seventy-four billion, five hundred forty-two million, fifteen thousand, seven hundred thirty".