213029278938 has 80 divisors (see below), whose sum is σ = 545633884224. Its totient is φ = 60854509440.

The previous prime is 213029278933. The next prime is 213029279009. The reversal of 213029278938 is 839872920312.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213029278933) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7880281 + ... + 7907267.

Almost surely, 2^213029278938 is an apocalyptic number.

213029278938 is an abundant number, since it is smaller than the sum of its proper divisors (332604605286).

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

213029278938 is a wasteful number, since it uses less digits than its factorization.

213029278938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33969 (or 33960 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 213029278938 in words is "two hundred thirteen billion, twenty-nine million, two hundred seventy-eight thousand, nine hundred thirty-eight".