690038578793 has 4 divisors (see below), whose sum is σ = 690049221120. Its totient is φ = 690027936468.

The previous prime is 690038578771. The next prime is 690038578807. The reversal of 690038578793 is 397875830096.

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 690038578793 - 2²⁴ = 690021801577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690038578193) 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, 5223305 + ... + 5353782.

It is an arithmetic number, because the mean of its divisors is an integer number (172512305280).

Almost surely, 2^690038578793 is an apocalyptic number.

It is an amenable number.

690038578793 is a deficient number, since it is larger than the sum of its proper divisors (10642327).

690038578793 is a wasteful number, since it uses less digits than its factorization.

690038578793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10642326.

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 690038578793 in words is "six hundred ninety billion, thirty-eight million, five hundred seventy-eight thousand, seven hundred ninety-three".