72150722535 has 16 divisors (see below), whose sum is σ = 115469708256. Its totient is φ = 38470867968.

The previous prime is 72150722507. The next prime is 72150722549. The reversal of 72150722535 is 53522705127.

It is not a de Polignac number, because 72150722535 - 2⁵ = 72150722503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72150722493 and 72150722502.

It is a congruent number.

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, 531954 + ... + 653663.

It is an arithmetic number, because the mean of its divisors is an integer number (7216856766).

Almost surely, 2^72150722535 is an apocalyptic number.

72150722535 is a deficient number, since it is larger than the sum of its proper divisors (43318985721).

72150722535 is a wasteful number, since it uses less digits than its factorization.

72150722535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189682.

The product of its (nonzero) digits is 147000, while the sum is 39.

The spelling of 72150722535 in words is "seventy-two billion, one hundred fifty million, seven hundred twenty-two thousand, five hundred thirty-five".