61505742632 has 16 divisors (see below), whose sum is σ = 115326944640. Its totient is φ = 30751890736.

The previous prime is 61505742581. The next prime is 61505742647. The reversal of 61505742632 is 23624750516.

It is a self number, because there is not a number n which added to its sum of digits gives 61505742632.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191273 + ... + 399495.

It is an arithmetic number, because the mean of its divisors is an integer number (7207934040).

Almost surely, 2^61505742632 is an apocalyptic number.

It is an amenable number.

61505742632 is a deficient number, since it is larger than the sum of its proper divisors (53821202008).

61505742632 is a wasteful number, since it uses less digits than its factorization.

61505742632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245152 (or 245148 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 61505742632 in words is "sixty-one billion, five hundred five million, seven hundred forty-two thousand, six hundred thirty-two".