636742539034 has 16 divisors (see below), whose sum is σ = 1098511244928. Its totient is φ = 271151507952.

The previous prime is 636742539023. The next prime is 636742539079. The reversal of 636742539034 is 430935247636.

It is a super-2 number, since 2×636742539034² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144843694 + ... + 144848089.

It is an arithmetic number, because the mean of its divisors is an integer number (68656952808).

Almost surely, 2^636742539034 is an apocalyptic number.

636742539034 is a deficient number, since it is larger than the sum of its proper divisors (461768705894).

636742539034 is a wasteful number, since it uses less digits than its factorization.

636742539034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289691949.

The product of its (nonzero) digits is 9797760, while the sum is 52.

The spelling of 636742539034 in words is "six hundred thirty-six billion, seven hundred forty-two million, five hundred thirty-nine thousand, thirty-four".