61473407461 has 4 divisors (see below), whose sum is σ = 62903021632. Its totient is φ = 60043793292.

The previous prime is 61473407423. The next prime is 61473407507. The reversal of 61473407461 is 16470437416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61473407461 - 2²⁵ = 61439853029 is a prime.

It is a super-2 number, since 2×61473407461² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1429614127 = 61473407461 / (6 + 1 + 4 + 7 + 3 + 4 + 0 + 7 + 4 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61473407561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714807021 + ... + 714807106.

It is an arithmetic number, because the mean of its divisors is an integer number (15725755408).

Almost surely, 2^61473407461 is an apocalyptic number.

It is an amenable number.

61473407461 is a deficient number, since it is larger than the sum of its proper divisors (1429614171).

61473407461 is a wasteful number, since it uses less digits than its factorization.

61473407461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429614170.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 61473407461 in words is "sixty-one billion, four hundred seventy-three million, four hundred seven thousand, four hundred sixty-one".