650388981367 has 4 divisors (see below), whose sum is σ = 666252127296. Its totient is φ = 634525835440.

The previous prime is 650388981313. The next prime is 650388981391. The reversal of 650388981367 is 763189883056.

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

It is a cyclic number.

It is not a de Polignac number, because 650388981367 - 2¹¹ = 650388979319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 650388981299 and 650388981308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650388981167) 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, 7931572903 + ... + 7931572984.

It is an arithmetic number, because the mean of its divisors is an integer number (166563031824).

Almost surely, 2^650388981367 is an apocalyptic number.

650388981367 is a deficient number, since it is larger than the sum of its proper divisors (15863145929).

650388981367 is a wasteful number, since it uses less digits than its factorization.

650388981367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15863145928.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 650388981367 in words is "six hundred fifty billion, three hundred eighty-eight million, nine hundred eighty-one thousand, three hundred sixty-seven".