201970939623 has 8 divisors (see below), whose sum is σ = 281003046528. Its totient is φ = 128793062904.

The previous prime is 201970939579. The next prime is 201970939661. The reversal of 201970939623 is 326939079102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201970939623 - 2¹³ = 201970931431 is a prime.

It is a super-2 number, since 2×201970939623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201970939223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463557465 + ... + 1463557602.

It is an arithmetic number, because the mean of its divisors is an integer number (35125380816).

Almost surely, 2^201970939623 is an apocalyptic number.

201970939623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201970939623 is a deficient number, since it is larger than the sum of its proper divisors (79032106905).

201970939623 is a wasteful number, since it uses less digits than its factorization.

201970939623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927115093.

The product of its (nonzero) digits is 1102248, while the sum is 51.

The spelling of 201970939623 in words is "two hundred one billion, nine hundred seventy million, nine hundred thirty-nine thousand, six hundred twenty-three".