670399387392 has 72 divisors (see below), whose sum is σ = 2039131486336. Its totient is φ = 191542680576.

The previous prime is 670399387387. The next prime is 670399387393. The reversal of 670399387392 is 293783993076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670399387393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62345758 + ... + 62356509.

Almost surely, 2^670399387392 is an apocalyptic number.

It is an amenable number.

670399387392 is an abundant number, since it is smaller than the sum of its proper divisors (1368732098944).

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

670399387392 is a wasteful number, since it uses less digits than its factorization.

670399387392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124702293 (or 124702279 counting only the distinct ones).

The product of its (nonzero) digits is 92588832, while the sum is 66.

The spelling of 670399387392 in words is "six hundred seventy billion, three hundred ninety-nine million, three hundred eighty-seven thousand, three hundred ninety-two".