201878950623 has 16 divisors (see below), whose sum is σ = 307671755520. Its totient is φ = 115341892416.

The previous prime is 201878950619. The next prime is 201878950627. The reversal of 201878950623 is 326059878102.

It is an interprime number because it is at equal distance from previous prime (201878950619) and next prime (201878950627).

It is not a de Polignac number, because 201878950623 - 2² = 201878950619 is a prime.

It is a super-2 number, since 2×201878950623² (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 (201878950627) 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, 587190 + ... + 865187.

It is an arithmetic number, because the mean of its divisors is an integer number (19229484720).

Almost surely, 2^201878950623 is an apocalyptic number.

201878950623 is a deficient number, since it is larger than the sum of its proper divisors (105792804897).

201878950623 is a wasteful number, since it uses less digits than its factorization.

201878950623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459006.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 201878950623 in words is "two hundred one billion, eight hundred seventy-eight million, nine hundred fifty thousand, six hundred twenty-three".