400350125499 has 8 divisors (see below), whose sum is σ = 533803230480. Its totient is φ = 266898552096.

The previous prime is 400350125491. The next prime is 400350125501. The reversal of 400350125499 is 994521053004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400350125499 - 2³ = 400350125491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400350125499.

It is not an unprimeable number, because it can be changed into a prime (400350125491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555769 + ... + 1053365.

It is an arithmetic number, because the mean of its divisors is an integer number (66725403810).

Almost surely, 2^400350125499 is an apocalyptic number.

400350125499 is a deficient number, since it is larger than the sum of its proper divisors (133453104981).

400350125499 is a wasteful number, since it uses less digits than its factorization.

400350125499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765789.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 400350125499 in words is "four hundred billion, three hundred fifty million, one hundred twenty-five thousand, four hundred ninety-nine".