121754762077 has 8 divisors (see below), whose sum is σ = 131126234400. Its totient is φ = 112384107120.

The previous prime is 121754762071. The next prime is 121754762099. The reversal of 121754762077 is 770267457121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121754762077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121754762077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121754762071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124674 + ... + 508972.

It is an arithmetic number, because the mean of its divisors is an integer number (16390779300).

Almost surely, 2^121754762077 is an apocalyptic number.

It is an amenable number.

121754762077 is a deficient number, since it is larger than the sum of its proper divisors (9371472323).

121754762077 is a wasteful number, since it uses less digits than its factorization.

121754762077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408683.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 121754762077 in words is "one hundred twenty-one billion, seven hundred fifty-four million, seven hundred sixty-two thousand, seventy-seven".