1401251262650 has 24 divisors (see below), whose sum is σ = 2645227763040. Its totient is φ = 552134824560.

The previous prime is 1401251262641. The next prime is 1401251262679. The reversal of 1401251262650 is 562621521041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401251262650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209138630 + ... + 209145329.

It is an arithmetic number, because the mean of its divisors is an integer number (110217823460).

Almost surely, 2^{1401251262650} is an apocalyptic number.

1401251262650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1401251262650 is a deficient number, since it is larger than the sum of its proper divisors (1243976500390).

1401251262650 is a wasteful number, since it uses less digits than its factorization.

1401251262650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418284038 (or 418284033 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 1401251262650 its reverse (562621521041), we get a palindrome (1963872783691).

The spelling of 1401251262650 in words is "one trillion, four hundred one billion, two hundred fifty-one million, two hundred sixty-two thousand, six hundred fifty".