121694631774 has 32 divisors (see below), whose sum is σ = 251059017120. Its totient is φ = 39296161152.

The previous prime is 121694631739. The next prime is 121694631797. The reversal of 121694631774 is 477136496121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146049 + ... + 1247724.

It is an arithmetic number, because the mean of its divisors is an integer number (7845594285).

Almost surely, 2^121694631774 is an apocalyptic number.

121694631774 is an abundant number, since it is smaller than the sum of its proper divisors (129364385346).

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

121694631774 is a wasteful number, since it uses less digits than its factorization.

121694631774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394044.

The product of its digits is 1524096, while the sum is 51.

The spelling of 121694631774 in words is "one hundred twenty-one billion, six hundred ninety-four million, six hundred thirty-one thousand, seven hundred seventy-four".