61427671783 has 8 divisors (see below), whose sum is σ = 64691820720. Its totient is φ = 58166634240.

The previous prime is 61427671771. The next prime is 61427671787. The reversal of 61427671783 is 38717672416.

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 61427671783 - 2⁹ = 61427671271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61427671783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61427671787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737260 + ... + 816337.

It is an arithmetic number, because the mean of its divisors is an integer number (8086477590).

Almost surely, 2^61427671783 is an apocalyptic number.

61427671783 is a deficient number, since it is larger than the sum of its proper divisors (3264148937).

61427671783 is a wasteful number, since it uses less digits than its factorization.

61427671783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555697.

The product of its digits is 2370816, while the sum is 52.

The spelling of 61427671783 in words is "sixty-one billion, four hundred twenty-seven million, six hundred seventy-one thousand, seven hundred eighty-three".