61287048423 has 6 divisors (see below), whose sum is σ = 88525736624. Its totient is φ = 40858032276.

The previous prime is 61287048421. The next prime is 61287048479. The reversal of 61287048423 is 32484078216.

It is a happy number.

61287048423 is a `hidden beast` number, since 61 + 28 + 70 + 484 + 23 = 666.

It is not a de Polignac number, because 61287048423 - 2¹ = 61287048421 is a prime.

It is a super-2 number, since 2×61287048423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61287048421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3404836015 + ... + 3404836032.

Almost surely, 2^61287048423 is an apocalyptic number.

61287048423 is a deficient number, since it is larger than the sum of its proper divisors (27238688201).

61287048423 is a wasteful number, since it uses less digits than its factorization.

61287048423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809672053 (or 6809672050 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 61287048423 in words is "sixty-one billion, two hundred eighty-seven million, forty-eight thousand, four hundred twenty-three".