1401627621563 has 4 divisors (see below), whose sum is σ = 1509445130928. Its totient is φ = 1293810112200.

The previous prime is 1401627621473. The next prime is 1401627621613. The reversal of 1401627621563 is 3651267261041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401627621563 - 2⁸ = 1401627621307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401627626563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53908754663 + ... + 53908754688.

It is an arithmetic number, because the mean of its divisors is an integer number (377361282732).

Almost surely, 2^{1401627621563} is an apocalyptic number.

1401627621563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1401627621563 is a deficient number, since it is larger than the sum of its proper divisors (107817509365).

1401627621563 is a wasteful number, since it uses less digits than its factorization.

1401627621563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107817509364.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 1401627621563 in words is "one trillion, four hundred one billion, six hundred twenty-seven million, six hundred twenty-one thousand, five hundred sixty-three".