61640513200037 has 8 divisors (see below), whose sum is σ = 61697407320000. Its totient is φ = 61583643313024.

The previous prime is 61640513200027. The next prime is 61640513200039. The reversal of 61640513200037 is 73000231504616.

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

It is a cyclic number.

It is not a de Polignac number, because 61640513200037 - 2³⁰ = 61639439458213 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 (61640513200039) 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, 966587 + ... + 11145192.

It is an arithmetic number, because the mean of its divisors is an integer number (7712175915000).

Almost surely, 2^{61640513200037} is an apocalyptic number.

It is an amenable number.

61640513200037 is a deficient number, since it is larger than the sum of its proper divisors (56894119963).

61640513200037 is a wasteful number, since it uses less digits than its factorization.

61640513200037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116475.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 61640513200037 in words is "sixty-one trillion, six hundred forty billion, five hundred thirteen million, two hundred thousand, thirty-seven".