699847245938 has 4 divisors (see below), whose sum is σ = 1049770868910. Its totient is φ = 349923622968.

The previous prime is 699847245871. The next prime is 699847245949. The reversal of 699847245938 is 839542748996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 679425978529 + 20421267409 = 824273^2 + 142903^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174961811483 + ... + 174961811486.

Almost surely, 2^699847245938 is an apocalyptic number.

699847245938 is a deficient number, since it is larger than the sum of its proper divisors (349923622972).

699847245938 is a wasteful number, since it uses less digits than its factorization.

699847245938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349923622971.

The product of its digits is 940584960, while the sum is 74.

The spelling of 699847245938 in words is "six hundred ninety-nine billion, eight hundred forty-seven million, two hundred forty-five thousand, nine hundred thirty-eight".