42694615406 has 4 divisors (see below), whose sum is σ = 64041923112. Its totient is φ = 21347307702.

The previous prime is 42694615363. The next prime is 42694615417. The reversal of 42694615406 is 60451649624.

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

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 as a sum of consecutive naturals, namely, 10673653850 + ... + 10673653853.

It is an arithmetic number, because the mean of its divisors is an integer number (16010480778).

Almost surely, 2^42694615406 is an apocalyptic number.

42694615406 is a deficient number, since it is larger than the sum of its proper divisors (21347307706).

42694615406 is a wasteful number, since it uses less digits than its factorization.

42694615406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21347307705.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 42694615406 in words is "forty-two billion, six hundred ninety-four million, six hundred fifteen thousand, four hundred six".