75387156109620 has 24 divisors (see below), whose sum is σ = 211084037107104. Its totient is φ = 20103241629216.

The previous prime is 75387156109597. The next prime is 75387156109633. The reversal of 75387156109620 is 2690165178357.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 1256452601827 = 75387156109620 / (7 + 5 + 3 + 8 + 7 + 1 + 5 + 6 + 1 + 0 + 9 + 6 + 2 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628226300854 + ... + 628226300973.

It is an arithmetic number, because the mean of its divisors is an integer number (8795168212796).

Almost surely, 2^{75387156109620} is an apocalyptic number.

It is an amenable number.

75387156109620 is an abundant number, since it is smaller than the sum of its proper divisors (135696880997484).

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

75387156109620 is a wasteful number, since it uses less digits than its factorization.

75387156109620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256452601839 (or 1256452601837 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 75387156109620 in words is "seventy-five trillion, three hundred eighty-seven billion, one hundred fifty-six million, one hundred nine thousand, six hundred twenty".