61308971594 has 16 divisors (see below), whose sum is σ = 99047763360. Its totient is φ = 28293535920.

The previous prime is 61308971579. The next prime is 61308971609. The reversal of 61308971594 is 49517980316.

It is an interprime number because it is at equal distance from previous prime (61308971579) and next prime (61308971609).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147329 + ... + 379899.

It is an arithmetic number, because the mean of its divisors is an integer number (6190485210).

Almost surely, 2^61308971594 is an apocalyptic number.

61308971594 is a deficient number, since it is larger than the sum of its proper divisors (37738791766).

61308971594 is a wasteful number, since it uses less digits than its factorization.

61308971594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242725.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 61308971594 in words is "sixty-one billion, three hundred eight million, nine hundred seventy-one thousand, five hundred ninety-four".