61377077315 has 8 divisors (see below), whose sum is σ = 74340834480. Its totient is φ = 48642767392.

The previous prime is 61377077309. The next prime is 61377077323. The reversal of 61377077315 is 51377077316.

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 61377077315 - 2¹⁴ = 61377060931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61377077315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57361220 + ... + 57362289.

It is an arithmetic number, because the mean of its divisors is an integer number (9292604310).

Almost surely, 2^61377077315 is an apocalyptic number.

61377077315 is a deficient number, since it is larger than the sum of its proper divisors (12963757165).

61377077315 is a wasteful number, since it uses less digits than its factorization.

61377077315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114723621.

The product of its (nonzero) digits is 648270, while the sum is 47.

Subtracting from 61377077315 its reverse (51377077316), we obtain a palindrome (9999999999).

The spelling of 61377077315 in words is "sixty-one billion, three hundred seventy-seven million, seventy-seven thousand, three hundred fifteen".