3953638750436 has 12 divisors (see below), whose sum is σ = 6918886923312. Its totient is φ = 1976813915208.

The previous prime is 3953638750429. The next prime is 3953638750469. The reversal of 3953638750436 is 6340578363593.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568571 + ... + 2868893.

It is an arithmetic number, because the mean of its divisors is an integer number (576573910276).

Almost surely, 2^{3953638750436} is an apocalyptic number.

It is an amenable number.

3953638750436 is a deficient number, since it is larger than the sum of its proper divisors (2965248172876).

3953638750436 is a wasteful number, since it uses less digits than its factorization.

3953638750436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730010 (or 2730008 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 62.

It can be divided in two parts, 3953638 and 750436, that added together give a palindrome (4704074).

The spelling of 3953638750436 in words is "three trillion, nine hundred fifty-three billion, six hundred thirty-eight million, seven hundred fifty thousand, four hundred thirty-six".