61679072950 has 24 divisors (see below), whose sum is σ = 125152447320. Its totient is φ = 22428753600.

The previous prime is 61679072893. The next prime is 61679073007. The reversal of 61679072950 is 5927097616.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61679072893) and next prime (61679073007).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56071335 + ... + 56072434.

It is an arithmetic number, because the mean of its divisors is an integer number (5214685305).

Almost surely, 2^61679072950 is an apocalyptic number.

61679072950 is an abundant number, since it is smaller than the sum of its proper divisors (63473374370).

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

61679072950 is a wasteful number, since it uses less digits than its factorization.

61679072950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112143792 (or 112143787 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 61679072950 in words is "sixty-one billion, six hundred seventy-nine million, seventy-two thousand, nine hundred fifty".