2638875001390 has 8 divisors (see below), whose sum is σ = 4749975002520. Its totient is φ = 1055550000552.

The previous prime is 2638875001379. The next prime is 2638875001391. The reversal of 2638875001390 is 931005788362.

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

It is a super-2 number, since 2×2638875001390² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638875001391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131943750060 + ... + 131943750079.

It is an arithmetic number, because the mean of its divisors is an integer number (593746875315).

Almost surely, 2^{2638875001390} is an apocalyptic number.

2638875001390 is a deficient number, since it is larger than the sum of its proper divisors (2111100001130).

2638875001390 is a wasteful number, since it uses less digits than its factorization.

2638875001390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263887500146.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 2638875001390 in words is "two trillion, six hundred thirty-eight billion, eight hundred seventy-five million, one thousand, three hundred ninety".