61448071879 has 8 divisors (see below), whose sum is σ = 61565678720. Its totient is φ = 61330534776.

The previous prime is 61448071873. The next prime is 61448071889. The reversal of 61448071879 is 97817084416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61448071879 - 2¹³ = 61448063687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61448071873) 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, 1956502 + ... + 1987660.

It is an arithmetic number, because the mean of its divisors is an integer number (7695709840).

Almost surely, 2^61448071879 is an apocalyptic number.

61448071879 is a deficient number, since it is larger than the sum of its proper divisors (117606841).

61448071879 is a wasteful number, since it uses less digits than its factorization.

61448071879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34869.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 61448071879 in words is "sixty-one billion, four hundred forty-eight million, seventy-one thousand, eight hundred seventy-nine".