61476407686 has 4 divisors (see below), whose sum is σ = 92214611532. Its totient is φ = 30738203842.

The previous prime is 61476407669. The next prime is 61476407689. The reversal of 61476407686 is 68670467416.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×61476407686⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61476407689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15369101920 + ... + 15369101923.

It is an arithmetic number, because the mean of its divisors is an integer number (23053652883).

Almost surely, 2^61476407686 is an apocalyptic number.

61476407686 is a deficient number, since it is larger than the sum of its proper divisors (30738203846).

61476407686 is a wasteful number, since it uses less digits than its factorization.

61476407686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30738203845.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 61476407686 in words is "sixty-one billion, four hundred seventy-six million, four hundred seven thousand, six hundred eighty-six".