2877621940644 has 24 divisors (see below), whose sum is σ = 7324855849248. Its totient is φ = 872006648640.

The previous prime is 2877621940619. The next prime is 2877621940657. The reversal of 2877621940644 is 4460491267782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900082977 + ... + 10900083240.

It is an arithmetic number, because the mean of its divisors is an integer number (305202327052).

Almost surely, 2^{2877621940644} is an apocalyptic number.

It is an amenable number.

2877621940644 is an abundant number, since it is smaller than the sum of its proper divisors (4447233908604).

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

2877621940644 is a wasteful number, since it uses less digits than its factorization.

2877621940644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21800166235 (or 21800166233 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 2877621940644 in words is "two trillion, eight hundred seventy-seven billion, six hundred twenty-one million, nine hundred forty thousand, six hundred forty-four".