61206623513 has 8 divisors (see below), whose sum is σ = 70003390080. Its totient is φ = 52423097760.

The previous prime is 61206623437. The next prime is 61206623537. The reversal of 61206623513 is 31532660216.

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 61206623513 - 2¹⁸ = 61206361369 is a prime.

It is a super-2 number, since 2×61206623513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61206622513) 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, 3300293 + ... + 3318786.

It is an arithmetic number, because the mean of its divisors is an integer number (8750423760).

Almost surely, 2^61206623513 is an apocalyptic number.

It is an amenable number.

61206623513 is a deficient number, since it is larger than the sum of its proper divisors (8796766567).

61206623513 is a wasteful number, since it uses less digits than its factorization.

61206623513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620407.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 61206623513 in words is "sixty-one billion, two hundred six million, six hundred twenty-three thousand, five hundred thirteen".