75370072720 has 40 divisors (see below), whose sum is σ = 177703536960. Its totient is φ = 29723406720.

The previous prime is 75370072711. The next prime is 75370072759. The reversal of 75370072720 is 2727007357.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6629010 + ... + 6640369.

It is an arithmetic number, because the mean of its divisors is an integer number (4442588424).

Almost surely, 2^75370072720 is an apocalyptic number.

It is an amenable number.

75370072720 is an abundant number, since it is smaller than the sum of its proper divisors (102333464240).

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

75370072720 is a wasteful number, since it uses less digits than its factorization.

75370072720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269463 (or 13269457 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 40.

The spelling of 75370072720 in words is "seventy-five billion, three hundred seventy million, seventy-two thousand, seven hundred twenty".