401486137477 has 2 divisors, whose sum is σ = 401486137478. Its totient is φ = 401486137476.

The previous prime is 401486137471. The next prime is 401486137561. The reversal of 401486137477 is 774731684104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339468204321 + 62017933156 = 582639^2 + 249034^2 .

It is a cyclic number.

It is not a de Polignac number, because 401486137477 - 2³ = 401486137469 is a prime.

It is a super-2 number, since 2×401486137477² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401486137471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200743068738 + 200743068739.

It is an arithmetic number, because the mean of its divisors is an integer number (200743068739).

Almost surely, 2^401486137477 is an apocalyptic number.

It is an amenable number.

401486137477 is a deficient number, since it is larger than the sum of its proper divisors (1).

401486137477 is an equidigital number, since it uses as much as digits as its factorization.

401486137477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 401486137477 in words is "four hundred one billion, four hundred eighty-six million, one hundred thirty-seven thousand, four hundred seventy-seven".