61847470080 has 1024 divisors, whose sum is σ = 253667635200. Its totient is φ = 14155776000.

The previous prime is 61847470079. The next prime is 61847470103. The reversal of 61847470080 is 8007474816.

61847470080 is a `hidden beast` number, since 61 + 8 + 47 + 470 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1024).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1508474860 + ... + 1508474900.

It is an arithmetic number, because the mean of its divisors is an integer number (247722300).

Almost surely, 2^61847470080 is an apocalyptic number.

61847470080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61847470080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126833817600).

61847470080 is an abundant number, since it is smaller than the sum of its proper divisors (191820165120).

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

61847470080 is a wasteful number, since it uses less digits than its factorization.

61847470080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The spelling of 61847470080 in words is "sixty-one billion, eight hundred forty-seven million, four hundred seventy thousand, eighty".