61473603465 has 24 divisors (see below), whose sum is σ = 106611647688. Its totient is φ = 32768259840.

The previous prime is 61473603437. The next prime is 61473603469. The reversal of 61473603465 is 56430637416.

61473603465 is a `hidden beast` number, since 61 + 4 + 73 + 60 + 3 + 465 = 666.

61473603465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1735888896 + 59737714569 = 41664^2 + 244413^2 .

It is not a de Polignac number, because 61473603465 - 2⁷ = 61473603337 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 61473603465.

It is not an unprimeable number, because it can be changed into a prime (61473603469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283284 + ... + 450773.

It is an arithmetic number, because the mean of its divisors is an integer number (4442151987).

Almost surely, 2^61473603465 is an apocalyptic number.

It is an amenable number.

61473603465 is a deficient number, since it is larger than the sum of its proper divisors (45138044223).

61473603465 is a wasteful number, since it uses less digits than its factorization.

61473603465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735929 (or 735926 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 61473603465 in words is "sixty-one billion, four hundred seventy-three million, six hundred three thousand, four hundred sixty-five".