61747260480 has 168 divisors, whose sum is σ = 212495587200. Its totient is φ = 16457352192.

The previous prime is 61747260479. The next prime is 61747260493. The reversal of 61747260480 is 8406274716.

61747260480 is a `hidden beast` number, since 617 + 4 + 7 + 26 + 0 + 4 + 8 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7077561 + ... + 7086279.

Almost surely, 2^61747260480 is an apocalyptic number.

61747260480 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 61747260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106247793600).

61747260480 is an abundant number, since it is smaller than the sum of its proper divisors (150748326720).

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

61747260480 is a wasteful number, since it uses less digits than its factorization.

61747260480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201 (or 11188 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 61747260480 in words is "sixty-one billion, seven hundred forty-seven million, two hundred sixty thousand, four hundred eighty".