1531401413398 has 4 divisors (see below), whose sum is σ = 2297102120100. Its totient is φ = 765700706698.

The previous prime is 1531401413293. The next prime is 1531401413413. The reversal of 1531401413398 is 8933141041351.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382850353348 + ... + 382850353351.

It is an arithmetic number, because the mean of its divisors is an integer number (574275530025).

Almost surely, 2^{1531401413398} is an apocalyptic number.

1531401413398 is a deficient number, since it is larger than the sum of its proper divisors (765700706702).

1531401413398 is an equidigital number, since it uses as much as digits as its factorization.

1531401413398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765700706701.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 1531401413398 in words is "one trillion, five hundred thirty-one billion, four hundred one million, four hundred thirteen thousand, three hundred ninety-eight".