61336155857877 has 48 divisors (see below), whose sum is σ = 89273844698688. Its totient is φ = 40578920778240.

The previous prime is 61336155857831. The next prime is 61336155857881. The reversal of 61336155857877 is 77875855163316.

61336155857877 is a `hidden beast` number, since 6 + 1 + 3 + 3 + 61 + 558 + 5 + 7 + 8 + 7 + 7 = 666.

It is not a de Polignac number, because 61336155857877 - 2¹¹ = 61336155855829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61336155857477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4370844253 + ... + 4370858285.

It is an arithmetic number, because the mean of its divisors is an integer number (1859871764556).

Almost surely, 2^{61336155857877} is an apocalyptic number.

It is an amenable number.

61336155857877 is a deficient number, since it is larger than the sum of its proper divisors (27937688840811).

61336155857877 is a wasteful number, since it uses less digits than its factorization.

61336155857877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17890 (or 17887 counting only the distinct ones).

The product of its digits is 889056000, while the sum is 72.

The spelling of 61336155857877 in words is "sixty-one trillion, three hundred thirty-six billion, one hundred fifty-five million, eight hundred fifty-seven thousand, eight hundred seventy-seven".