83077905402 has 12 divisors (see below), whose sum is σ = 180002128410. Its totient is φ = 27692635128.

The previous prime is 83077905401. The next prime is 83077905413. The reversal of 83077905402 is 20450977038.

83077905402 is a `hidden beast` number, since 8 + 30 + 7 + 79 + 0 + 540 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45224700921 + 37853204481 = 212661^2 + 194559^2 .

It is not an unprimeable number, because it can be changed into a prime (83077905401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2307719577 + ... + 2307719612.

Almost surely, 2^83077905402 is an apocalyptic number.

83077905402 is an abundant number, since it is smaller than the sum of its proper divisors (96924223008).

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

83077905402 is a wasteful number, since it uses less digits than its factorization.

83077905402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615439197 (or 4615439194 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 83077905402 in words is "eighty-three billion, seventy-seven million, nine hundred five thousand, four hundred two".