213703401667391 has 8 divisors (see below), whose sum is σ = 213779639061600. Its totient is φ = 213627177640800.

The previous prime is 213703401667373. The next prime is 213703401667537. The reversal of 213703401667391 is 193766104307312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213703401667391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213703407667391) 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, 28691825 + ... + 35364213.

It is an arithmetic number, because the mean of its divisors is an integer number (26722454882700).

Almost surely, 2^{213703401667391} is an apocalyptic number.

213703401667391 is a deficient number, since it is larger than the sum of its proper divisors (76237394209).

213703401667391 is an equidigital number, since it uses as much as digits as its factorization.

213703401667391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683809.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 213703401667391 in words is "two hundred thirteen trillion, seven hundred three billion, four hundred one million, six hundred sixty-seven thousand, three hundred ninety-one".