638151028314 has 16 divisors (see below), whose sum is σ = 1288230114528. Its totient is φ = 210728999792.

The previous prime is 638151028303. The next prime is 638151028321. The reversal of 638151028314 is 413820151836.

It is a happy number.

638151028314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 497001717 + ... + 497003000.

It is an arithmetic number, because the mean of its divisors is an integer number (80514382158).

Almost surely, 2^638151028314 is an apocalyptic number.

638151028314 is an abundant number, since it is smaller than the sum of its proper divisors (650079086214).

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

638151028314 is a wasteful number, since it uses less digits than its factorization.

638151028314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994004829.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 638151028314 in words is "six hundred thirty-eight billion, one hundred fifty-one million, twenty-eight thousand, three hundred fourteen".