61273946461 has 8 divisors (see below), whose sum is σ = 75414088064. Its totient is φ = 48480485040.

The previous prime is 61273946449. The next prime is 61273946509. The reversal of 61273946461 is 16464937216.

61273946461 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 61273946461 - 2⁹ = 61273945949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61273946401) 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, 336669945 + ... + 336670126.

It is an arithmetic number, because the mean of its divisors is an integer number (9426761008).

Almost surely, 2^61273946461 is an apocalyptic number.

It is an amenable number.

61273946461 is a deficient number, since it is larger than the sum of its proper divisors (14140141603).

61273946461 is a wasteful number, since it uses less digits than its factorization.

61273946461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673340091.

The product of its digits is 1306368, while the sum is 49.

The spelling of 61273946461 in words is "sixty-one billion, two hundred seventy-three million, nine hundred forty-six thousand, four hundred sixty-one".