61417278392 has 32 divisors (see below), whose sum is σ = 116974231920. Its totient is φ = 30227808000.

The previous prime is 61417278383. The next prime is 61417278407. The reversal of 61417278392 is 29387271416.

It is a self number, because there is not a number n which added to its sum of digits gives 61417278392.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94109 + ... + 362892.

Almost surely, 2^61417278392 is an apocalyptic number.

It is an amenable number.

61417278392 is a deficient number, since it is larger than the sum of its proper divisors (55556953528).

61417278392 is a wasteful number, since it uses less digits than its factorization.

61417278392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457271 (or 457267 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The spelling of 61417278392 in words is "sixty-one billion, four hundred seventeen million, two hundred seventy-eight thousand, three hundred ninety-two".