61263693672 has 32 divisors (see below), whose sum is σ = 153173008800. Its totient is φ = 20419394624.

The previous prime is 61263693661. The next prime is 61263693677. The reversal of 61263693672 is 27639636216.

It is a happy number.

61263693672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61263693677) 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, 172279 + ... + 390137.

It is an arithmetic number, because the mean of its divisors is an integer number (4786656525).

Almost surely, 2^61263693672 is an apocalyptic number.

It is an amenable number.

61263693672 is an abundant number, since it is smaller than the sum of its proper divisors (91909315128).

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

61263693672 is a wasteful number, since it uses less digits than its factorization.

61263693672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229585 (or 229581 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 51.

The spelling of 61263693672 in words is "sixty-one billion, two hundred sixty-three million, six hundred ninety-three thousand, six hundred seventy-two".