61107728254 has 8 divisors (see below), whose sum is σ = 91735696008. Its totient is φ = 30529162920.

The previous prime is 61107728207. The next prime is 61107728263. The reversal of 61107728254 is 45282770116.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61107728254.

It is a congruent number.

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, 12347512 + ... + 12352459.

It is an arithmetic number, because the mean of its divisors is an integer number (11466962001).

Almost surely, 2^61107728254 is an apocalyptic number.

61107728254 is a deficient number, since it is larger than the sum of its proper divisors (30627967754).

61107728254 is a wasteful number, since it uses less digits than its factorization.

61107728254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24701210.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 61107728254 in words is "sixty-one billion, one hundred seven million, seven hundred twenty-eight thousand, two hundred fifty-four".