3951038902394 has 16 divisors (see below), whose sum is σ = 6275306520000. Its totient is φ = 1859274769344.

The previous prime is 3951038902387. The next prime is 3951038902397. The reversal of 3951038902394 is 4932098301593.

It is a super-2 number, since 2×3951038902394² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3951038902397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564107 + ... + 2867105.

It is an arithmetic number, because the mean of its divisors is an integer number (392206657500).

Almost surely, 2^{3951038902394} is an apocalyptic number.

3951038902394 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3951038902394 is a deficient number, since it is larger than the sum of its proper divisors (2324267617606).

3951038902394 is a wasteful number, since it uses less digits than its factorization.

3951038902394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353477.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 3951038902394 in words is "three trillion, nine hundred fifty-one billion, thirty-eight million, nine hundred two thousand, three hundred ninety-four".