1402323557557 has 16 divisors (see below), whose sum is σ = 1577284305408. Its totient is φ = 1237049130240.

The previous prime is 1402323557549. The next prime is 1402323557623. The reversal of 1402323557557 is 7557553232041.

It is a cyclic number.

It is not a de Polignac number, because 1402323557557 - 2³ = 1402323557549 is a prime.

It is a super-2 number, since 2×1402323557557² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1402323557557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402323557507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1796244 + ... + 2455837.

It is an arithmetic number, because the mean of its divisors is an integer number (98580269088).

Almost surely, 2^{1402323557557} is an apocalyptic number.

It is an amenable number.

1402323557557 is a deficient number, since it is larger than the sum of its proper divisors (174960747851).

1402323557557 is a wasteful number, since it uses less digits than its factorization.

1402323557557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253220.

The product of its (nonzero) digits is 4410000, while the sum is 49.

Adding to 1402323557557 its reverse (7557553232041), we get a palindrome (8959876789598).

The spelling of 1402323557557 in words is "one trillion, four hundred two billion, three hundred twenty-three million, five hundred fifty-seven thousand, five hundred fifty-seven".