39920009774 has 8 divisors (see below), whose sum is σ = 63031594440. Its totient is φ = 18909478296.

The previous prime is 39920009761. The next prime is 39920009819. The reversal of 39920009774 is 47790002993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525263249 + ... + 525263324.

It is an arithmetic number, because the mean of its divisors is an integer number (7878949305).

Almost surely, 2^39920009774 is an apocalyptic number.

39920009774 is a deficient number, since it is larger than the sum of its proper divisors (23111584666).

39920009774 is a wasteful number, since it uses less digits than its factorization.

39920009774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050526594.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 39920009774 in words is "thirty-nine billion, nine hundred twenty million, nine thousand, seven hundred seventy-four".