401598503587 has 2 divisors, whose sum is σ = 401598503588. Its totient is φ = 401598503586.

The previous prime is 401598503503. The next prime is 401598503633. The reversal of 401598503587 is 785305895104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401598503587 is a prime.

It is a super-2 number, since 2×401598503587² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401598593587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200799251793 + 200799251794.

It is an arithmetic number, because the mean of its divisors is an integer number (200799251794).

Almost surely, 2^401598503587 is an apocalyptic number.

401598503587 is a deficient number, since it is larger than the sum of its proper divisors (1).

401598503587 is an equidigital number, since it uses as much as digits as its factorization.

401598503587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 55.

It can be divided in two parts, 401598 and 503587, that added together give a triangular number (905185 = T₁₃₄₅).

The spelling of 401598503587 in words is "four hundred one billion, five hundred ninety-eight million, five hundred three thousand, five hundred eighty-seven".