39972146150687 has 32 divisors (see below), whose sum is σ = 42097099161600. Its totient is φ = 37906864819200.

The previous prime is 39972146150593. The next prime is 39972146150701. The reversal of 39972146150687 is 78605164127993.

It is a cyclic number.

It is not a de Polignac number, because 39972146150687 - 2²⁶ = 39972079041823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39972148150687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2536134887 + ... + 2536150647.

It is an arithmetic number, because the mean of its divisors is an integer number (1315534348800).

It is a 1-persistent number, because it is pandigital, but 2⋅39972146150687 = 79944292301374 is not.

Almost surely, 2^{39972146150687} is an apocalyptic number.

39972146150687 is a deficient number, since it is larger than the sum of its proper divisors (2124953010913).

39972146150687 is a wasteful number, since it uses less digits than its factorization.

39972146150687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23567.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 39972146150687 in words is "thirty-nine trillion, nine hundred seventy-two billion, one hundred forty-six million, one hundred fifty thousand, six hundred eighty-seven".