61090932517549 has 96 divisors (see below), whose sum is σ = 71587489357440. Its totient is φ = 51681356812800.

The previous prime is 61090932517501. The next prime is 61090932517577. The reversal of 61090932517549 is 94571523909016.

It is a happy number.

It is not a de Polignac number, because 61090932517549 - 2¹⁵ = 61090932484781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61090932517579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12761838534 + ... + 12761843320.

It is an arithmetic number, because the mean of its divisors is an integer number (745703014140).

Almost surely, 2^{61090932517549} is an apocalyptic number.

It is an amenable number.

61090932517549 is a deficient number, since it is larger than the sum of its proper divisors (10496556839891).

61090932517549 is a wasteful number, since it uses less digits than its factorization.

61090932517549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291 (or 5268 counting only the distinct ones).

The product of its (nonzero) digits is 18370800, while the sum is 61.

The spelling of 61090932517549 in words is "sixty-one trillion, ninety billion, nine hundred thirty-two million, five hundred seventeen thousand, five hundred forty-nine".