61263215702239 has 8 divisors (see below), whose sum is σ = 62920090106048. Its totient is φ = 59606399815200.

The previous prime is 61263215702233. The next prime is 61263215702263. The reversal of 61263215702239 is 93220751236216.

It is a happy number.

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 61263215702239 - 2¹³ = 61263215694047 is a prime.

It is a super-2 number, since 2×61263215702239² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61263215702192 and 61263215702201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263215702233) 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, 12502887 + ... + 16698760.

It is an arithmetic number, because the mean of its divisors is an integer number (7865011263256).

Almost surely, 2^{61263215702239} is an apocalyptic number.

61263215702239 is a deficient number, since it is larger than the sum of its proper divisors (1656874403809).

61263215702239 is a wasteful number, since it uses less digits than its factorization.

61263215702239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29258385.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 61263215702239 in words is "sixty-one trillion, two hundred sixty-three billion, two hundred fifteen million, seven hundred two thousand, two hundred thirty-nine".