615381055832488 has 96 divisors (see below), whose sum is σ = 1300692680174880. Its totient is φ = 270686204438400.

The previous prime is 615381055832443. The next prime is 615381055832509. The reversal of 615381055832488 is 884238550183516.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2854654195 + ... + 2854869757.

It is an arithmetic number, because the mean of its divisors is an integer number (13548882085155).

Almost surely, 2^{615381055832488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 615381055832488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650346340087440).

615381055832488 is an abundant number, since it is smaller than the sum of its proper divisors (685311624342392).

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

615381055832488 is a wasteful number, since it uses less digits than its factorization.

615381055832488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249399 (or 249364 counting only the distinct ones).

The product of its (nonzero) digits is 221184000, while the sum is 67.

The spelling of 615381055832488 in words is "six hundred fifteen trillion, three hundred eighty-one billion, fifty-five million, eight hundred thirty-two thousand, four hundred eighty-eight".