2101961510 has 32 divisors (see below), whose sum is σ = 4260639744. Its totient is φ = 739692000.

The previous prime is 2101961509. The next prime is 2101961531. The reversal of 2101961510 is 151691012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101961510.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304796 + ... + 311615.

It is an arithmetic number, because the mean of its divisors is an integer number (133144992).

Almost surely, 2^2101961510 is an apocalyptic number.

2101961510 is an abundant number, since it is smaller than the sum of its proper divisors (2158678234).

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

2101961510 is a wasteful number, since it uses less digits than its factorization.

2101961510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616460.

The product of its (nonzero) digits is 540, while the sum is 26.

The square root of 2101961510 is about 45847.1537829776. The cubic root of 2101961510 is about 1280.9777502528.

The spelling of 2101961510 in words is "two billion, one hundred one million, nine hundred sixty-one thousand, five hundred ten".