21837713070 has 32 divisors (see below), whose sum is σ = 53298829440. Its totient is φ = 5724688160.

The previous prime is 21837713059. The next prime is 21837713077. The reversal of 21837713070 is 7031773812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21837713077) 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, 6167076 + ... + 6170615.

It is an arithmetic number, because the mean of its divisors is an integer number (1665588420).

Almost surely, 2^21837713070 is an apocalyptic number.

21837713070 is an abundant number, since it is smaller than the sum of its proper divisors (31461116370).

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

21837713070 is a wasteful number, since it uses less digits than its factorization.

21837713070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12337760.

The product of its (nonzero) digits is 49392, while the sum is 39.

The spelling of 21837713070 in words is "twenty-one billion, eight hundred thirty-seven million, seven hundred thirteen thousand, seventy".