61494075674880 has 576 divisors, whose sum is σ = 206322462517248. Its totient is φ = 15590794199040.

The previous prime is 61494075674833. The next prime is 61494075674923. The reversal of 61494075674880 is 8847657049416.

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, 1581903124 + ... + 1581941996.

It is an arithmetic number, because the mean of its divisors is an integer number (358198719648).

Almost surely, 2^{61494075674880} is an apocalyptic number.

61494075674880 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 61494075674880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103161231258624).

61494075674880 is an abundant number, since it is smaller than the sum of its proper divisors (144828386842368).

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

61494075674880 is a wasteful number, since it uses less digits than its factorization.

61494075674880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39162 (or 39148 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 61494075674880 in words is "sixty-one trillion, four hundred ninety-four billion, seventy-five million, six hundred seventy-four thousand, eight hundred eighty".