690195933758 has 4 divisors (see below), whose sum is σ = 1035293900640. Its totient is φ = 345097966878.

The previous prime is 690195933689. The next prime is 690195933767. The reversal of 690195933758 is 857339591096.

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

It is a junction number, because it is equal to n+sod(n) for n = 690195933694 and 690195933703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172548983438 + ... + 172548983441.

It is an arithmetic number, because the mean of its divisors is an integer number (258823475160).

Almost surely, 2^690195933758 is an apocalyptic number.

690195933758 is a deficient number, since it is larger than the sum of its proper divisors (345097966882).

690195933758 is a wasteful number, since it uses less digits than its factorization.

690195933758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345097966881.

The product of its (nonzero) digits is 55112400, while the sum is 65.

The spelling of 690195933758 in words is "six hundred ninety billion, one hundred ninety-five million, nine hundred thirty-three thousand, seven hundred fifty-eight".