2120077787541 has 16 divisors (see below), whose sum is σ = 3232142751744. Its totient is φ = 1210892511024.

The previous prime is 2120077787533. The next prime is 2120077787591. The reversal of 2120077787541 is 1457877700212.

It is not a de Polignac number, because 2120077787541 - 2³ = 2120077787533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120077787521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24143065 + ... + 24230718.

It is an arithmetic number, because the mean of its divisors is an integer number (202008921984).

Almost surely, 2^{2120077787541} is an apocalyptic number.

2120077787541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2120077787541 is a deficient number, since it is larger than the sum of its proper divisors (1112064964203).

2120077787541 is a wasteful number, since it uses less digits than its factorization.

2120077787541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48375880.

The product of its (nonzero) digits is 1536640, while the sum is 51.

The spelling of 2120077787541 in words is "two trillion, one hundred twenty billion, seventy-seven million, seven hundred eighty-seven thousand, five hundred forty-one".