61036400847 has 8 divisors (see below), whose sum is σ = 81386534656. Its totient is φ = 40688600472.

The previous prime is 61036400839. The next prime is 61036400863. The reversal of 61036400847 is 74800463016.

61036400847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61036400847 - 2³ = 61036400839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61036400827) 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, 521383 + ... + 627624.

It is an arithmetic number, because the mean of its divisors is an integer number (10173316832).

Almost surely, 2^61036400847 is an apocalyptic number.

61036400847 is a deficient number, since it is larger than the sum of its proper divisors (20350133809).

61036400847 is a wasteful number, since it uses less digits than its factorization.

61036400847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166717.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 61036400847 in words is "sixty-one billion, thirty-six million, four hundred thousand, eight hundred forty-seven".