61612309583 has 8 divisors (see below), whose sum is σ = 67224429696. Its totient is φ = 56002023000.

The previous prime is 61612309579. The next prime is 61612309597. The reversal of 61612309583 is 38590321616.

61612309583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61612309583 - 2² = 61612309579 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 (61612309523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387641 + ... + 522962.

It is an arithmetic number, because the mean of its divisors is an integer number (8403053712).

Almost surely, 2^61612309583 is an apocalyptic number.

61612309583 is a deficient number, since it is larger than the sum of its proper divisors (5612120113).

61612309583 is a wasteful number, since it uses less digits than its factorization.

61612309583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916765.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 61612309583 in words is "sixty-one billion, six hundred twelve million, three hundred nine thousand, five hundred eighty-three".