61223000715 has 96 divisors (see below), whose sum is σ = 113218350336. Its totient is φ = 31715349120.

The previous prime is 61223000701. The next prime is 61223000767. The reversal of 61223000715 is 51700032216.

It is a happy number.

61223000715 is a `hidden beast` number, since 612 + 2 + 30 + 0 + 0 + 7 + 15 = 666.

It is not a de Polignac number, because 61223000715 - 2¹¹ = 61222998667 is a prime.

It is a super-2 number, since 2×61223000715² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 95 ways as a sum of consecutive naturals, for example, 52282080 + ... + 52283250.

It is an arithmetic number, because the mean of its divisors is an integer number (1179357816).

Almost surely, 2^61223000715 is an apocalyptic number.

61223000715 is a deficient number, since it is larger than the sum of its proper divisors (51995349621).

61223000715 is a wasteful number, since it uses less digits than its factorization.

61223000715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 61223000715 in words is "sixty-one billion, two hundred twenty-three million, seven hundred fifteen", and thus it is an aban number.