61481558075 has 24 divisors (see below), whose sum is σ = 88906288800. Its totient is φ = 42158776800.

The previous prime is 61481558059. The next prime is 61481558137. The reversal of 61481558075 is 57085518416.

It is not a de Polignac number, because 61481558075 - 2⁴ = 61481558059 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 3576356 + ... + 3593505.

It is an arithmetic number, because the mean of its divisors is an integer number (3704428700).

Almost surely, 2^61481558075 is an apocalyptic number.

61481558075 is a deficient number, since it is larger than the sum of its proper divisors (27424730725).

61481558075 is an equidigital number, since it uses as much as digits as its factorization.

61481558075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169892 (or 7169873 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 61481558075 in words is "sixty-one billion, four hundred eighty-one million, five hundred fifty-eight thousand, seventy-five".