9129398401442 has 16 divisors (see below), whose sum is σ = 14939603407872. Its totient is φ = 4149563256720.

The previous prime is 9129398401373. The next prime is 9129398401517. The reversal of 9129398401442 is 2441048939219.

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, 7591778 + ... + 8711709.

It is an arithmetic number, because the mean of its divisors is an integer number (933725212992).

Almost surely, 2^{9129398401442} is an apocalyptic number.

9129398401442 is a deficient number, since it is larger than the sum of its proper divisors (5810205006430).

9129398401442 is a wasteful number, since it uses less digits than its factorization.

9129398401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16328953.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 9129398401442 in words is "nine trillion, one hundred twenty-nine billion, three hundred ninety-eight million, four hundred one thousand, four hundred forty-two".