61459708880 has 80 divisors (see below), whose sum is σ = 150463941120. Its totient is φ = 23282348544.

The previous prime is 61459708841. The next prime is 61459708901. The reversal of 61459708880 is 8880795416.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×61459708880² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7189889 + ... + 7198431.

It is an arithmetic number, because the mean of its divisors is an integer number (1880799264).

Almost surely, 2^61459708880 is an apocalyptic number.

It is an amenable number.

61459708880 is an abundant number, since it is smaller than the sum of its proper divisors (89004232240).

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

61459708880 is a wasteful number, since it uses less digits than its factorization.

61459708880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13308 (or 13302 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 61459708880 in words is "sixty-one billion, four hundred fifty-nine million, seven hundred eight thousand, eight hundred eighty".