354963699870 has 128 divisors (see below), whose sum is σ = 942802398720. Its totient is φ = 84963479040.

The previous prime is 354963699821. The next prime is 354963699913. The reversal of 354963699870 is 78996369453.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 354963699795 and 354963699804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27857961 + ... + 27870699.

It is an arithmetic number, because the mean of its divisors is an integer number (7365643740).

Almost surely, 2^354963699870 is an apocalyptic number.

354963699870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 354963699870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471401199360).

354963699870 is an abundant number, since it is smaller than the sum of its proper divisors (587838698850).

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

354963699870 is a wasteful number, since it uses less digits than its factorization.

354963699870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14730.

The product of its (nonzero) digits is 264539520, while the sum is 69.

The spelling of 354963699870 in words is "three hundred fifty-four billion, nine hundred sixty-three million, six hundred ninety-nine thousand, eight hundred seventy".