2100138603690 has 32 divisors (see below), whose sum is σ = 5044637030976. Its totient is φ = 559558696320.

The previous prime is 2100138603677. The next prime is 2100138603697. The reversal of 2100138603690 is 963068310012.

It is a super-2 number, since 2×2100138603690² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100138603697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29855827 + ... + 29926086.

It is an arithmetic number, because the mean of its divisors is an integer number (157644907218).

Almost surely, 2^{2100138603690} is an apocalyptic number.

2100138603690 is an abundant number, since it is smaller than the sum of its proper divisors (2944498427286).

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

2100138603690 is a wasteful number, since it uses less digits than its factorization.

2100138603690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59783094.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 2100138603690 in words is "two trillion, one hundred billion, one hundred thirty-eight million, six hundred three thousand, six hundred ninety".