61275658704 has 160 divisors (see below), whose sum is σ = 181585877760. Its totient is φ = 17638219776.

The previous prime is 61275658699. The next prime is 61275658739. The reversal of 61275658704 is 40785657216.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1754242 + ... + 1788830.

It is an arithmetic number, because the mean of its divisors is an integer number (1134911736).

Almost surely, 2^61275658704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61275658704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90792938880).

61275658704 is an abundant number, since it is smaller than the sum of its proper divisors (120310219056).

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

61275658704 is a wasteful number, since it uses less digits than its factorization.

61275658704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34797 (or 34791 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 61275658704 in words is "sixty-one billion, two hundred seventy-five million, six hundred fifty-eight thousand, seven hundred four".