61897792006 has 16 divisors (see below), whose sum is σ = 94829851584. Its totient is φ = 30287948544.

The previous prime is 61897791997. The next prime is 61897792049. The reversal of 61897792006 is 60029779816.

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, 1788886 + ... + 1823158.

It is an arithmetic number, because the mean of its divisors is an integer number (5926865724).

Almost surely, 2^61897792006 is an apocalyptic number.

61897792006 is a deficient number, since it is larger than the sum of its proper divisors (32932059578).

61897792006 is a wasteful number, since it uses less digits than its factorization.

61897792006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53535.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 61897792006 in words is "sixty-one billion, eight hundred ninety-seven million, seven hundred ninety-two thousand, six".