61707506112 has 84 divisors (see below), whose sum is σ = 202141069936. Its totient is φ = 17630714880.

The previous prime is 61707506093. The next prime is 61707506137. The reversal of 61707506112 is 21160570716.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7648189 + ... + 7656252.

Almost surely, 2^61707506112 is an apocalyptic number.

It is an amenable number.

61707506112 is an abundant number, since it is smaller than the sum of its proper divisors (140433563824).

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

61707506112 is a wasteful number, since it uses less digits than its factorization.

61707506112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15304466 (or 15304453 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 61707506112 in words is "sixty-one billion, seven hundred seven million, five hundred six thousand, one hundred twelve".