39995468974 has 4 divisors (see below), whose sum is σ = 59993203464. Its totient is φ = 19997734486.

The previous prime is 39995468969. The next prime is 39995468983. The reversal of 39995468974 is 47986459993.

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

It is a super-2 number, since 2×39995468974² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39995468897 and 39995468906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9998867242 + ... + 9998867245.

It is an arithmetic number, because the mean of its divisors is an integer number (14998300866).

Almost surely, 2^39995468974 is an apocalyptic number.

39995468974 is a deficient number, since it is larger than the sum of its proper divisors (19997734490).

39995468974 is a wasteful number, since it uses less digits than its factorization.

39995468974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19997734489.

The product of its digits is 529079040, while the sum is 73.

The spelling of 39995468974 in words is "thirty-nine billion, nine hundred ninety-five million, four hundred sixty-eight thousand, nine hundred seventy-four".