213912903361540 has 24 divisors (see below), whose sum is σ = 449266685374080. Its totient is φ = 85555715951328.

The previous prime is 213912903361511. The next prime is 213912903361541. The reversal of 213912903361540 is 45163309219312.

It is a super-3 number, since 3×213912903361540³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (213912903361541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590151372 + ... + 590513731.

It is an arithmetic number, because the mean of its divisors is an integer number (18719445223920).

Almost surely, 2^{213912903361540} is an apocalyptic number.

213912903361540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213912903361540 is an abundant number, since it is smaller than the sum of its proper divisors (235353782012540).

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

213912903361540 is a wasteful number, since it uses less digits than its factorization.

213912903361540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180674171 (or 1180674169 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 213912903361540 in words is "two hundred thirteen trillion, nine hundred twelve billion, nine hundred three million, three hundred sixty-one thousand, five hundred forty".