39641509434 has 16 divisors (see below), whose sum is σ = 79984639872. Its totient is φ = 13096899648.

The previous prime is 39641509433. The next prime is 39641509441. The reversal of 39641509434 is 43490514693.

It is a super-2 number, since 2×39641509434² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39641509433) 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 7 ways as a sum of consecutive naturals, for example, 29233474 + ... + 29234829.

It is an arithmetic number, because the mean of its divisors is an integer number (4999039992).

Almost surely, 2^39641509434 is an apocalyptic number.

39641509434 is an abundant number, since it is smaller than the sum of its proper divisors (40343130438).

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

39641509434 is a wasteful number, since it uses less digits than its factorization.

39641509434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58468421.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 39641509434 in words is "thirty-nine billion, six hundred forty-one million, five hundred nine thousand, four hundred thirty-four".