121644785034 has 12 divisors (see below), whose sum is σ = 263563700946. Its totient is φ = 40548261672.

The previous prime is 121644785029. The next prime is 121644785039. The reversal of 121644785034 is 430587446121.

121644785034 is a `hidden beast` number, since 12 + 1 + 64 + 4 + 78 + 503 + 4 = 666.

121644785034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121644785029) and next prime (121644785039).

It can be written as a sum of positive squares in only one way, i.e., 81182255625 + 40462529409 = 284925^2 + 201153^2 .

It is not an unprimeable number, because it can be changed into a prime (121644785039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3379021789 + ... + 3379021824.

Almost surely, 2^121644785034 is an apocalyptic number.

121644785034 is an abundant number, since it is smaller than the sum of its proper divisors (141918915912).

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

121644785034 is a wasteful number, since it uses less digits than its factorization.

121644785034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758043621 (or 6758043618 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 121644785034 in words is "one hundred twenty-one billion, six hundred forty-four million, seven hundred eighty-five thousand, thirty-four".