2861917403924 has 12 divisors (see below), whose sum is σ = 5008427650464. Its totient is φ = 1430938075224.

The previous prime is 2861917403923. The next prime is 2861917403959. The reversal of 2861917403924 is 4293047191682.

It is a happy number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2861917403924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861917403921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4842374 + ... + 5401149.

It is an arithmetic number, because the mean of its divisors is an integer number (417368970872).

Almost surely, 2^{2861917403924} is an apocalyptic number.

It is an amenable number.

2861917403924 is a deficient number, since it is larger than the sum of its proper divisors (2146510246540).

2861917403924 is a wasteful number, since it uses less digits than its factorization.

2861917403924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10313374 (or 10313372 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 2861917403924 in words is "two trillion, eight hundred sixty-one billion, nine hundred seventeen million, four hundred three thousand, nine hundred twenty-four".