61497269313480 has 7168 divisors, whose sum is σ = 313071575040000. Its totient is φ = 10666233446400.

The previous prime is 61497269313413. The next prime is 61497269313503. The reversal of 61497269313480 is 8431396279416.

61497269313480 is a `hidden beast` number, since 6 + 1 + 4 + 97 + 2 + 69 + 3 + 1 + 3 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 1791 ways as a sum of consecutive naturals, for example, 842428346724 + ... + 842428346796.

It is an arithmetic number, because the mean of its divisors is an integer number (43676280000).

Almost surely, 2^{61497269313480} is an apocalyptic number.

61497269313480 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 61497269313480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156535787520000).

61497269313480 is an abundant number, since it is smaller than the sum of its proper divisors (251574305726520).

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

61497269313480 is a wasteful number, since it uses less digits than its factorization.

61497269313480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 63.

The spelling of 61497269313480 in words is "sixty-one trillion, four hundred ninety-seven billion, two hundred sixty-nine million, three hundred thirteen thousand, four hundred eighty".