29028771512 has 16 divisors (see below), whose sum is σ = 58615788840. Its totient is φ = 13397894496.

The previous prime is 29028771511. The next prime is 29028771517. The reversal of 29028771512 is 21517782092.

It is a super-2 number, since 2×29028771512² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29028771511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139561298 + ... + 139561505.

Almost surely, 2^29028771512 is an apocalyptic number.

It is an amenable number.

29028771512 is an abundant number, since it is smaller than the sum of its proper divisors (29587017328).

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

29028771512 is a wasteful number, since it uses less digits than its factorization.

29028771512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279122822 (or 279122818 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 29028771512 in words is "twenty-nine billion, twenty-eight million, seven hundred seventy-one thousand, five hundred twelve".