49913317906 has 8 divisors (see below), whose sum is σ = 74871863820. Its totient is φ = 24956029968.

The previous prime is 49913317843. The next prime is 49913317919. The reversal of 49913317906 is 60971331994.

It can be written as a sum of positive squares in 2 ways, for example, as 45322577881 + 4590740025 = 212891^2 + 67755^2 .

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

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, 208101 + ... + 378328.

Almost surely, 2^49913317906 is an apocalyptic number.

49913317906 is a deficient number, since it is larger than the sum of its proper divisors (24958545914).

49913317906 is a wasteful number, since it uses less digits than its factorization.

49913317906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628988.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 49913317906 in words is "forty-nine billion, nine hundred thirteen million, three hundred seventeen thousand, nine hundred six".