354257888660 has 48 divisors (see below), whose sum is σ = 801613746192. Its totient is φ = 130730112000.

The previous prime is 354257888651. The next prime is 354257888687. The reversal of 354257888660 is 66888752453.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 25713405316 + 328544483344 = 160354^2 + 573188^2 .

It is a super-3 number, since 3×354257888660³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 354257888593 and 354257888602.

It is a congruent number.

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, 89990 + ... + 846530.

It is an arithmetic number, because the mean of its divisors is an integer number (16700286379).

Almost surely, 2^354257888660 is an apocalyptic number.

It is an amenable number.

354257888660 is an abundant number, since it is smaller than the sum of its proper divisors (447355857532).

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

354257888660 is a wasteful number, since it uses less digits than its factorization.

354257888660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758364 (or 758362 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 62.

The spelling of 354257888660 in words is "three hundred fifty-four billion, two hundred fifty-seven million, eight hundred eighty-eight thousand, six hundred sixty".