21875153377 has 16 divisors (see below), whose sum is σ = 27542957184. Its totient is φ = 16876800000.

The previous prime is 21875153347. The next prime is 21875153387. The reversal of 21875153377 is 77335157812.

It is a cyclic number.

It is not a de Polignac number, because 21875153377 - 2¹⁹ = 21874629089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21875153377.

It is not an unprimeable number, because it can be changed into a prime (21875153347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398624 + ... + 1414177.

It is an arithmetic number, because the mean of its divisors is an integer number (1721434824).

Almost surely, 2^21875153377 is an apocalyptic number.

It is an amenable number.

21875153377 is a deficient number, since it is larger than the sum of its proper divisors (5667803807).

21875153377 is a wasteful number, since it uses less digits than its factorization.

21875153377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812920.

The product of its digits is 1234800, while the sum is 49.

The spelling of 21875153377 in words is "twenty-one billion, eight hundred seventy-five million, one hundred fifty-three thousand, three hundred seventy-seven".