61896169625 has 16 divisors (see below), whose sum is σ = 77968365696. Its totient is φ = 49054150000.

The previous prime is 61896169619. The next prime is 61896169631. The reversal of 61896169625 is 52696169816.

It is an interprime number because it is at equal distance from previous prime (61896169619) and next prime (61896169631).

It is not a de Polignac number, because 61896169625 - 2¹⁰ = 61896168601 is a prime.

It is a super-2 number, since 2×61896169625² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2300501 + ... + 2327250.

It is an arithmetic number, because the mean of its divisors is an integer number (4873022856).

Almost surely, 2^61896169625 is an apocalyptic number.

It is an amenable number.

61896169625 is a deficient number, since it is larger than the sum of its proper divisors (16072196071).

61896169625 is a wasteful number, since it uses less digits than its factorization.

61896169625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627873 (or 4627863 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 59.

The spelling of 61896169625 in words is "sixty-one billion, eight hundred ninety-six million, one hundred sixty-nine thousand, six hundred twenty-five".