623767036476541 has 4 divisors (see below), whose sum is σ = 624266449637500. Its totient is φ = 623267623315584.

The previous prime is 623767036476491. The next prime is 623767036476559. The reversal of 623767036476541 is 145674630767326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 486389766628516 + 137377269848025 = 22054246^2 + 11720805^2 .

It is a cyclic number.

It is not a de Polignac number, because 623767036476541 - 2²⁷ = 623766902258813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623767036476041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249706578606 + ... + 249706581103.

It is an arithmetic number, because the mean of its divisors is an integer number (156066612409375).

Almost surely, 2^{623767036476541} is an apocalyptic number.

It is an amenable number.

623767036476541 is a deficient number, since it is larger than the sum of its proper divisors (499413160959).

623767036476541 is a wasteful number, since it uses less digits than its factorization.

623767036476541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499413160958.

The product of its (nonzero) digits is 640120320, while the sum is 67.

The spelling of 623767036476541 in words is "six hundred twenty-three trillion, seven hundred sixty-seven billion, thirty-six million, four hundred seventy-six thousand, five hundred forty-one".