61236413745 has 48 divisors (see below), whose sum is σ = 112087026240. Its totient is φ = 28373769216.

The previous prime is 61236413713. The next prime is 61236413761. The reversal of 61236413745 is 54731463216.

It is not a de Polignac number, because 61236413745 - 2⁵ = 61236413713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61236413697 and 61236413706.

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 47 ways as a sum of consecutive naturals, for example, 486955 + ... + 599664.

It is an arithmetic number, because the mean of its divisors is an integer number (2335146380).

Almost surely, 2^61236413745 is an apocalyptic number.

61236413745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61236413745 is a deficient number, since it is larger than the sum of its proper divisors (50850612495).

61236413745 is a wasteful number, since it uses less digits than its factorization.

61236413745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086674 (or 1086657 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The spelling of 61236413745 in words is "sixty-one billion, two hundred thirty-six million, four hundred thirteen thousand, seven hundred forty-five".