61356340273 has 8 divisors (see below), whose sum is σ = 66669029120. Its totient is φ = 56251992240.

The previous prime is 61356340249. The next prime is 61356340277. The reversal of 61356340273 is 37204365316.

61356340273 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 a cyclic number.

It is not a de Polignac number, because 61356340273 - 2²⁵ = 61322785841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61356340277) 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, 52084590 + ... + 52085767.

It is an arithmetic number, because the mean of its divisors is an integer number (8333628640).

Almost surely, 2^61356340273 is an apocalyptic number.

It is an amenable number.

61356340273 is a deficient number, since it is larger than the sum of its proper divisors (5312688847).

61356340273 is a wasteful number, since it uses less digits than its factorization.

61356340273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104170407.

The product of its (nonzero) digits is 272160, while the sum is 40.

The spelling of 61356340273 in words is "sixty-one billion, three hundred fifty-six million, three hundred forty thousand, two hundred seventy-three".