61404052263 has 8 divisors (see below), whose sum is σ = 81878526576. Its totient is φ = 40932806400.

The previous prime is 61404052243. The next prime is 61404052267. The reversal of 61404052263 is 36225040416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61404052263 - 2⁵ = 61404052231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61404052267) 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, 762378 + ... + 839063.

It is an arithmetic number, because the mean of its divisors is an integer number (10234815822).

Almost surely, 2^61404052263 is an apocalyptic number.

61404052263 is a deficient number, since it is larger than the sum of its proper divisors (20474474313).

61404052263 is a wasteful number, since it uses less digits than its factorization.

61404052263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614225.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 61404052263 its reverse (36225040416), we get a palindrome (97629092679).

The spelling of 61404052263 in words is "sixty-one billion, four hundred four million, fifty-two thousand, two hundred sixty-three".