21003092764920 has 192 divisors, whose sum is σ = 78016494366720. Its totient is φ = 4800398798592.

The previous prime is 21003092764879. The next prime is 21003092764921. The reversal of 21003092764920 is 2946729030012.

21003092764920 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 3 + 0 + 92 + 76 + 492 + 0 = 666.

It is a super-2 number, since 2×21003092764920² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003092764921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40219327 + ... + 40738193.

It is an arithmetic number, because the mean of its divisors is an integer number (406335908160).

Almost surely, 2^{21003092764920} is an apocalyptic number.

21003092764920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21003092764920 is an abundant number, since it is smaller than the sum of its proper divisors (57013401601800).

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

21003092764920 is a wasteful number, since it uses less digits than its factorization.

21003092764920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534954 (or 534947 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 21003092764920 in words is "twenty-one trillion, three billion, ninety-two million, seven hundred sixty-four thousand, nine hundred twenty".