61502678229 has 16 divisors (see below), whose sum is σ = 82763394560. Its totient is φ = 40623087600.

The previous prime is 61502678177. The next prime is 61502678231. The reversal of 61502678229 is 92287620516.

61502678229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61502678229 - 2⁷ = 61502678101 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 (61502678269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51654 + ... + 354504.

It is an arithmetic number, because the mean of its divisors is an integer number (5172712160).

Almost surely, 2^61502678229 is an apocalyptic number.

It is an amenable number.

61502678229 is a deficient number, since it is larger than the sum of its proper divisors (21260716331).

61502678229 is a wasteful number, since it uses less digits than its factorization.

61502678229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303480.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 61502678229 in words is "sixty-one billion, five hundred two million, six hundred seventy-eight thousand, two hundred twenty-nine".