1403768950561 has 8 divisors (see below), whose sum is σ = 1407520440800. Its totient is φ = 1400017711680.

The previous prime is 1403768950553. The next prime is 1403768950603. The reversal of 1403768950561 is 1650598673041.

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

It is a cyclic number.

It is not a de Polignac number, because 1403768950561 - 2³ = 1403768950553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403768950511) 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, 18069481 + ... + 18147001.

It is an arithmetic number, because the mean of its divisors is an integer number (175940055100).

Almost surely, 2^{1403768950561} is an apocalyptic number.

It is an amenable number.

1403768950561 is a deficient number, since it is larger than the sum of its proper divisors (3751490239).

1403768950561 is an equidigital number, since it uses as much as digits as its factorization.

1403768950561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125679.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 1403768950561 in words is "one trillion, four hundred three billion, seven hundred sixty-eight million, nine hundred fifty thousand, five hundred sixty-one".