61767067506 has 16 divisors (see below), whose sum is σ = 125097859200. Its totient is φ = 20328401808.

The previous prime is 61767067493. The next prime is 61767067517. The reversal of 61767067506 is 60576076716.

It is a super-2 number, since 2×61767067506² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65154661 + ... + 65155608.

It is an arithmetic number, because the mean of its divisors is an integer number (7818616200).

Almost surely, 2^61767067506 is an apocalyptic number.

61767067506 is an abundant number, since it is smaller than the sum of its proper divisors (63330791694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61767067506 is a wasteful number, since it uses less digits than its factorization.

61767067506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130310353.

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 61767067506 in words is "sixty-one billion, seven hundred sixty-seven million, sixty-seven thousand, five hundred six".