61072724567 has 4 divisors (see below), whose sum is σ = 61214425056. Its totient is φ = 60931024080.

The previous prime is 61072724543. The next prime is 61072724591. The reversal of 61072724567 is 76542727016.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61072724543) and next prime (61072724591).

It is a cyclic number.

It is not a de Polignac number, because 61072724567 - 2²⁰ = 61071675991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61072724267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70849598 + ... + 70850459.

It is an arithmetic number, because the mean of its divisors is an integer number (15303606264).

Almost surely, 2^61072724567 is an apocalyptic number.

61072724567 is a deficient number, since it is larger than the sum of its proper divisors (141700489).

61072724567 is a wasteful number, since it uses less digits than its factorization.

61072724567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141700488.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 61072724567 in words is "sixty-one billion, seventy-two million, seven hundred twenty-four thousand, five hundred sixty-seven".