36154640549 has 2 divisors, whose sum is σ = 36154640550. Its totient is φ = 36154640548.

The previous prime is 36154640513. The next prime is 36154640563. The reversal of 36154640549 is 94504645163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27693952225 + 8460688324 = 166415^2 + 91982^2 .

It is a cyclic number.

It is not a de Polignac number, because 36154640549 - 2²⁰ = 36153591973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36154640579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18077320274 + 18077320275.

It is an arithmetic number, because the mean of its divisors is an integer number (18077320275).

Almost surely, 2^36154640549 is an apocalyptic number.

It is an amenable number.

36154640549 is a deficient number, since it is larger than the sum of its proper divisors (1).

36154640549 is an equidigital number, since it uses as much as digits as its factorization.

36154640549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 36154640549 in words is "thirty-six billion, one hundred fifty-four million, six hundred forty thousand, five hundred forty-nine".