2100536723508 has 48 divisors (see below), whose sum is σ = 4947508797504. Its totient is φ = 693600952320.

The previous prime is 2100536723507. The next prime is 2100536723567. The reversal of 2100536723508 is 8053276350012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100536723508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100536723507) 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, 1323310 + ... + 2439717.

It is an arithmetic number, because the mean of its divisors is an integer number (103073099948).

Almost surely, 2^{2100536723508} is an apocalyptic number.

It is an amenable number.

2100536723508 is an abundant number, since it is smaller than the sum of its proper divisors (2846972073996).

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

2100536723508 is a wasteful number, since it uses less digits than its factorization.

2100536723508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763472 (or 3763470 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 2100536723508 in words is "two trillion, one hundred billion, five hundred thirty-six million, seven hundred twenty-three thousand, five hundred eight".