61296135390 has 96 divisors (see below), whose sum is σ = 188012537856. Its totient is φ = 13558587840.

The previous prime is 61296135367. The next prime is 61296135401. The reversal of 61296135390 is 9353169216.

61296135390 is a `hidden beast` number, since 6 + 1 + 29 + 613 + 5 + 3 + 9 + 0 = 666.

61296135390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1549752 + ... + 1588811.

It is an arithmetic number, because the mean of its divisors is an integer number (1958463936).

Almost surely, 2^61296135390 is an apocalyptic number.

61296135390 is an abundant number, since it is smaller than the sum of its proper divisors (126716402466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61296135390 is a wasteful number, since it uses less digits than its factorization.

61296135390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138614 (or 3138611 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 61296135390 in words is "sixty-one billion, two hundred ninety-six million, one hundred thirty-five thousand, three hundred ninety".