21060148877 has 8 divisors (see below), whose sum is σ = 21445891200. Its totient is φ = 20677385664.

The previous prime is 21060148861. The next prime is 21060148931. The reversal of 21060148877 is 77884106012.

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

It is a cyclic number.

It is not a de Polignac number, because 21060148877 - 2⁴ = 21060148861 is a prime.

It is a super-2 number, since 2×21060148877² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21060148817) 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, 730508 + ... + 758789.

It is an arithmetic number, because the mean of its divisors is an integer number (2680736400).

Almost surely, 2^21060148877 is an apocalyptic number.

It is an amenable number.

21060148877 is a deficient number, since it is larger than the sum of its proper divisors (385742323).

21060148877 is a wasteful number, since it uses less digits than its factorization.

21060148877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489555.

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 21060148877 in words is "twenty-one billion, sixty million, one hundred forty-eight thousand, eight hundred seventy-seven".