213606770351 has 16 divisors (see below), whose sum is σ = 233170680960. Its totient is φ = 194495109120.

The previous prime is 213606770327. The next prime is 213606770393. The reversal of 213606770351 is 153077606312.

It is a happy number.

It is not a de Polignac number, because 213606770351 - 2¹⁸ = 213606508207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213606770299 and 213606770308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213606770651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991631 + ... + 1187663.

It is an arithmetic number, because the mean of its divisors is an integer number (14573167560).

Almost surely, 2^213606770351 is an apocalyptic number.

213606770351 is a deficient number, since it is larger than the sum of its proper divisors (19563910609).

213606770351 is a wasteful number, since it uses less digits than its factorization.

213606770351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197186.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 213606770351 in words is "two hundred thirteen billion, six hundred six million, seven hundred seventy thousand, three hundred fifty-one".