75070138820 has 12 divisors (see below), whose sum is σ = 157647291564. Its totient is φ = 30028055520.

The previous prime is 75070138807. The next prime is 75070138831. The reversal of 75070138820 is 2883107057.

It can be written as a sum of positive squares in 2 ways, for example, as 57067476544 + 18002662276 = 238888^2 + 134174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876753451 + ... + 1876753490.

It is an arithmetic number, because the mean of its divisors is an integer number (13137274297).

Almost surely, 2^75070138820 is an apocalyptic number.

It is an amenable number.

75070138820 is an abundant number, since it is smaller than the sum of its proper divisors (82577152744).

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

75070138820 is a wasteful number, since it uses less digits than its factorization.

75070138820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753506950 (or 3753506948 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 75070138820 in words is "seventy-five billion, seventy million, one hundred thirty-eight thousand, eight hundred twenty".