35129378820 has 24 divisors (see below), whose sum is σ = 98362260864. Its totient is φ = 9367834336.

The previous prime is 35129378773. The next prime is 35129378849. The reversal of 35129378820 is 2887392153.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 35129378820.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292744764 + ... + 292744883.

It is an arithmetic number, because the mean of its divisors is an integer number (4098427536).

Almost surely, 2^35129378820 is an apocalyptic number.

35129378820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

35129378820 is an abundant number, since it is smaller than the sum of its proper divisors (63232882044).

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

35129378820 is a wasteful number, since it uses less digits than its factorization.

35129378820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585489659 (or 585489657 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 35129378820 in words is "thirty-five billion, one hundred twenty-nine million, three hundred seventy-eight thousand, eight hundred twenty".