2101849894368 has 240 divisors, whose sum is σ = 7371706890240. Its totient is φ = 574418490624.

The previous prime is 2101849894367. The next prime is 2101849894409. The reversal of 2101849894368 is 8634989481012.

2101849894368 is a `hidden beast` number, since 2 + 1 + 0 + 184 + 9 + 8 + 94 + 368 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101849894367) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2101008 + ... + 2935631.

It is an arithmetic number, because the mean of its divisors is an integer number (30715445376).

Almost surely, 2^{2101849894368} is an apocalyptic number.

2101849894368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2101849894368 is an abundant number, since it is smaller than the sum of its proper divisors (5269856995872).

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

2101849894368 is a wasteful number, since it uses less digits than its factorization.

2101849894368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036691 (or 5036674 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 2101849894368 in words is "two trillion, one hundred one billion, eight hundred forty-nine million, eight hundred ninety-four thousand, three hundred sixty-eight".