61649314539254 has 16 divisors (see below), whose sum is σ = 99616722535680. Its totient is φ = 28445138850240.

The previous prime is 61649314539247. The next prime is 61649314539259. The reversal of 61649314539254 is 45293541394616.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61649314539259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349532519 + ... + 349708850.

It is an arithmetic number, because the mean of its divisors is an integer number (6226045158480).

Almost surely, 2^{61649314539254} is an apocalyptic number.

61649314539254 is a deficient number, since it is larger than the sum of its proper divisors (37967407996426).

61649314539254 is a wasteful number, since it uses less digits than its factorization.

61649314539254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699244775.

The product of its digits is 83980800, while the sum is 62.

The spelling of 61649314539254 in words is "sixty-one trillion, six hundred forty-nine billion, three hundred fourteen million, five hundred thirty-nine thousand, two hundred fifty-four".