61502605411 has 16 divisors (see below), whose sum is σ = 66499804224. Its totient is φ = 56543745024.

The previous prime is 61502605391. The next prime is 61502605421. The reversal of 61502605411 is 11450620516.

61502605411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61502605411 - 2¹⁷ = 61502474339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61502605421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5556795 + ... + 5567851.

It is an arithmetic number, because the mean of its divisors is an integer number (4156237764).

Almost surely, 2^61502605411 is an apocalyptic number.

61502605411 is a deficient number, since it is larger than the sum of its proper divisors (4997198813).

61502605411 is a wasteful number, since it uses less digits than its factorization.

61502605411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 61502605411 in words is "sixty-one billion, five hundred two million, six hundred five thousand, four hundred eleven".