213942797037 has 6 divisors (see below), whose sum is σ = 309028484622. Its totient is φ = 142628531352.

The previous prime is 213942797023. The next prime is 213942797039. The reversal of 213942797037 is 730797249312.

213942797037 is a `hidden beast` number, since 213 + 94 + 279 + 70 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 158011020036 + 55931777001 = 397506^2 + 236499^2 .

It is not a de Polignac number, because 213942797037 - 2⁶ = 213942796973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213942797039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11885710938 + ... + 11885710955.

It is an arithmetic number, because the mean of its divisors is an integer number (51504747437).

Almost surely, 2^213942797037 is an apocalyptic number.

It is an amenable number.

213942797037 is a deficient number, since it is larger than the sum of its proper divisors (95085687585).

213942797037 is a wasteful number, since it uses less digits than its factorization.

213942797037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23771421899 (or 23771421896 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 213942797037 in words is "two hundred thirteen billion, nine hundred forty-two million, seven hundred ninety-seven thousand, thirty-seven".