38509902246 has 16 divisors (see below), whose sum is σ = 78810963264. Its totient is φ = 12538107624.

The previous prime is 38509902217. The next prime is 38509902293. The reversal of 38509902246 is 64220990583.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38509902195 and 38509902204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74631336 + ... + 74631851.

It is an arithmetic number, because the mean of its divisors is an integer number (4925685204).

Almost surely, 2^38509902246 is an apocalyptic number.

38509902246 is an abundant number, since it is smaller than the sum of its proper divisors (40301061018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38509902246 is a wasteful number, since it uses less digits than its factorization.

38509902246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149263235.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 38509902246 in words is "thirty-eight billion, five hundred nine million, nine hundred two thousand, two hundred forty-six".