29998862491040 has 24 divisors (see below), whose sum is σ = 70872312635460. Its totient is φ = 11999544996352.

The previous prime is 29998862491033. The next prime is 29998862491063. The reversal of 29998862491040 is 4019426889992.

It can be written as a sum of positive squares in 2 ways, for example, as 29491981145104 + 506881345936 = 5430652^2 + 711956^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93746445125 + ... + 93746445444.

Almost surely, 2^{29998862491040} is an apocalyptic number.

29998862491040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29998862491040 is an abundant number, since it is smaller than the sum of its proper divisors (40873450144420).

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

29998862491040 is a wasteful number, since it uses less digits than its factorization.

29998862491040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187492890584 (or 187492890576 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 71.

The spelling of 29998862491040 in words is "twenty-nine trillion, nine hundred ninety-eight billion, eight hundred sixty-two million, four hundred ninety-one thousand, forty".