2121504176077 has 16 divisors (see below), whose sum is σ = 2511422464320. Its totient is φ = 1766693260800.

The previous prime is 2121504176063. The next prime is 2121504176147. The reversal of 2121504176077 is 7706714051212.

It is not a de Polignac number, because 2121504176077 - 2³⁹ = 1571748362189 is a prime.

It is a super-2 number, since 2×2121504176077² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121504176977) 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, 56606052 + ... + 56643517.

It is an arithmetic number, because the mean of its divisors is an integer number (156963904020).

Almost surely, 2^{2121504176077} is an apocalyptic number.

It is an amenable number.

2121504176077 is a deficient number, since it is larger than the sum of its proper divisors (389918288243).

2121504176077 is a wasteful number, since it uses less digits than its factorization.

2121504176077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113249724.

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 2121504176077 in words is "two trillion, one hundred twenty-one billion, five hundred four million, one hundred seventy-six thousand, seventy-seven".