213988763937 has 16 divisors (see below), whose sum is σ = 323437808960. Its totient is φ = 124754582592.

The previous prime is 213988763887. The next prime is 213988763951. The reversal of 213988763937 is 739367889312.

It is not a de Polignac number, because 213988763937 - 2⁶ = 213988763873 is a prime.

It is a super-2 number, since 2×213988763937² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213988763437) 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, 144391138 + ... + 144392619.

It is an arithmetic number, because the mean of its divisors is an integer number (20214863060).

Almost surely, 2^213988763937 is an apocalyptic number.

It is an amenable number.

213988763937 is a deficient number, since it is larger than the sum of its proper divisors (109449045023).

213988763937 is a wasteful number, since it uses less digits than its factorization.

213988763937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288783792.

The product of its digits is 82301184, while the sum is 66.

The spelling of 213988763937 in words is "two hundred thirteen billion, nine hundred eighty-eight million, seven hundred sixty-three thousand, nine hundred thirty-seven".