29886669540 has 144 divisors (see below), whose sum is σ = 111576960768. Its totient is φ = 6305755392.

The previous prime is 29886669523. The next prime is 29886669559. The reversal of 29886669540 is 4596668892.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 895912 + ... + 928671.

Almost surely, 2^29886669540 is an apocalyptic number.

29886669540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29886669540 is an abundant number, since it is smaller than the sum of its proper divisors (81690291228).

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

29886669540 is a wasteful number, since it uses less digits than its factorization.

29886669540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824618 (or 1824613 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 63.

The spelling of 29886669540 in words is "twenty-nine billion, eight hundred eighty-six million, six hundred sixty-nine thousand, five hundred forty".