39972465290473 has 4 divisors (see below), whose sum is σ = 39997974204160. Its totient is φ = 39946956376788.

The previous prime is 39972465290423. The next prime is 39972465290503. The reversal of 39972465290473 is 37409256427993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 39972465290473 - 2⁹ = 39972465289961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39972465290423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12754454493 + ... + 12754457626.

It is an arithmetic number, because the mean of its divisors is an integer number (9999493551040).

Almost surely, 2^{39972465290473} is an apocalyptic number.

It is an amenable number.

39972465290473 is a deficient number, since it is larger than the sum of its proper divisors (25508913687).

39972465290473 is a wasteful number, since it uses less digits than its factorization.

39972465290473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508913686.

The product of its (nonzero) digits is 617258880, while the sum is 70.

The spelling of 39972465290473 in words is "thirty-nine trillion, nine hundred seventy-two billion, four hundred sixty-five million, two hundred ninety thousand, four hundred seventy-three".