21035351154 has 32 divisors (see below), whose sum is σ = 42875210304. Its totient is φ = 6877765440.

The previous prime is 21035351147. The next prime is 21035351171. The reversal of 21035351154 is 45115353012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145744 + ... + 2155524.

It is an arithmetic number, because the mean of its divisors is an integer number (1339850322).

Almost surely, 2^21035351154 is an apocalyptic number.

21035351154 is an abundant number, since it is smaller than the sum of its proper divisors (21839859150).

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

21035351154 is a wasteful number, since it uses less digits than its factorization.

21035351154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16602.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 21035351154 in words is "twenty-one billion, thirty-five million, three hundred fifty-one thousand, one hundred fifty-four".