28996318434 has 32 divisors (see below), whose sum is σ = 59807252736. Its totient is φ = 9365172480.

The previous prime is 28996318423. The next prime is 28996318451. The reversal of 28996318434 is 43481369982.

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, 217482 + ... + 324485.

It is an arithmetic number, because the mean of its divisors is an integer number (1868976648).

Almost surely, 2^28996318434 is an apocalyptic number.

28996318434 is an abundant number, since it is smaller than the sum of its proper divisors (30810934302).

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

28996318434 is a wasteful number, since it uses less digits than its factorization.

28996318434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542250.

The product of its digits is 8957952, while the sum is 57.

The spelling of 28996318434 in words is "twenty-eight billion, nine hundred ninety-six million, three hundred eighteen thousand, four hundred thirty-four".