61296154245 has 40 divisors (see below), whose sum is σ = 110015440920. Its totient is φ = 32650698240.

The previous prime is 61296154223. The next prime is 61296154247. The reversal of 61296154245 is 54245169216.

61296154245 is a `hidden beast` number, since 6 + 1 + 2 + 9 + 61 + 542 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2242780164 + 59053374081 = 47358^2 + 243009^2 .

It is not a de Polignac number, because 61296154245 - 2¹³ = 61296146053 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61296154245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61296154247) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 234105 + ... + 421185.

It is an arithmetic number, because the mean of its divisors is an integer number (2750386023).

Almost surely, 2^61296154245 is an apocalyptic number.

It is an amenable number.

61296154245 is a deficient number, since it is larger than the sum of its proper divisors (48719286675).

61296154245 is a wasteful number, since it uses less digits than its factorization.

61296154245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187907 (or 187898 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 61296154245 in words is "sixty-one billion, two hundred ninety-six million, one hundred fifty-four thousand, two hundred forty-five".