76642541433 has 12 divisors (see below), whose sum is σ = 111513967188. Its totient is φ = 50722070400.

The previous prime is 76642541431. The next prime is 76642541441. The reversal of 76642541433 is 33414524667.

76642541433 is a `hidden beast` number, since 7 + 6 + 64 + 2 + 541 + 43 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55702136169 + 20940405264 = 236013^2 + 144708^2 .

It is not a de Polignac number, because 76642541433 - 2¹ = 76642541431 is a prime.

It is a super-4 number, since 4×76642541433⁴ (a number of 45 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (76642541431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31078468 + ... + 31080933.

It is an arithmetic number, because the mean of its divisors is an integer number (9292830599).

Almost surely, 2^76642541433 is an apocalyptic number.

It is an amenable number.

76642541433 is a deficient number, since it is larger than the sum of its proper divisors (34871425755).

76642541433 is a wasteful number, since it uses less digits than its factorization.

76642541433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62159544 (or 62159541 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The spelling of 76642541433 in words is "seventy-six billion, six hundred forty-two million, five hundred forty-one thousand, four hundred thirty-three".