121751682747877 has 16 divisors (see below), whose sum is σ = 149954575841280. Its totient is φ = 96262633285632.

The previous prime is 121751682747859. The next prime is 121751682747931. The reversal of 121751682747877 is 778747286157121.

It is a cyclic number.

It is not a de Polignac number, because 121751682747877 - 2⁴³ = 112955589725669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121751682747817) 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, 474651973 + ... + 474908410.

It is an arithmetic number, because the mean of its divisors is an integer number (9372160990080).

Almost surely, 2^{121751682747877} is an apocalyptic number.

It is an amenable number.

121751682747877 is a deficient number, since it is larger than the sum of its proper divisors (28202893093403).

121751682747877 is a wasteful number, since it uses less digits than its factorization.

121751682747877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949561812.

The product of its digits is 516311040, while the sum is 73.

The spelling of 121751682747877 in words is "one hundred twenty-one trillion, seven hundred fifty-one billion, six hundred eighty-two million, seven hundred forty-seven thousand, eight hundred seventy-seven".