39106400618 has 4 divisors (see below), whose sum is σ = 58659600930. Its totient is φ = 19553200308.

The previous prime is 39106400603. The next prime is 39106400621. The reversal of 39106400618 is 81600460193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81600460193 = 7 ⋅11657208599.

It can be written as a sum of positive squares in only one way, i.e., 22854485329 + 16251915289 = 151177^2 + 127483^2 .

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 as a sum of consecutive naturals, namely, 9776600153 + ... + 9776600156.

Almost surely, 2^39106400618 is an apocalyptic number.

39106400618 is a deficient number, since it is larger than the sum of its proper divisors (19553200312).

39106400618 is a wasteful number, since it uses less digits than its factorization.

39106400618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19553200311.

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 39106400618 in words is "thirty-nine billion, one hundred six million, four hundred thousand, six hundred eighteen".