61922871512064 has 352 divisors, whose sum is σ = 187401483586560. Its totient is φ = 20189483974656.

The previous prime is 61922871512059. The next prime is 61922871512143. The reversal of 61922871512064 is 46021517822916.

61922871512064 is a `hidden beast` number, since 6 + 1 + 9 + 2 + 287 + 151 + 206 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 61922871512064.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2270135994 + ... + 2270163270.

Almost surely, 2^{61922871512064} is an apocalyptic number.

61922871512064 is a gapful number since it is divisible by the number (64) 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 61922871512064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93700741793280).

61922871512064 is an abundant number, since it is smaller than the sum of its proper divisors (125478612074496).

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

61922871512064 is a wasteful number, since it uses less digits than its factorization.

61922871512064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100 (or 29076 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 61922871512064 in words is "sixty-one trillion, nine hundred twenty-two billion, eight hundred seventy-one million, five hundred twelve thousand, sixty-four".