653687464434 has 32 divisors (see below), whose sum is σ = 1319064899904. Its totient is φ = 215947845120.

The previous prime is 653687464427. The next prime is 653687464439. The reversal of 653687464434 is 434464786356.

It is not an unprimeable number, because it can be changed into a prime (653687464439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8668657 + ... + 8743739.

It is an arithmetic number, because the mean of its divisors is an integer number (41220778122).

Almost surely, 2^653687464434 is an apocalyptic number.

653687464434 is an abundant number, since it is smaller than the sum of its proper divisors (665377435470).

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

653687464434 is a wasteful number, since it uses less digits than its factorization.

653687464434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88042.

The product of its digits is 139345920, while the sum is 60.

The spelling of 653687464434 in words is "six hundred fifty-three billion, six hundred eighty-seven million, four hundred sixty-four thousand, four hundred thirty-four".