40401527499989 has 2 divisors, whose sum is σ = 40401527499990. Its totient is φ = 40401527499988.

The previous prime is 40401527499973. The next prime is 40401527500003. The reversal of 40401527499989 is 98999472510404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28164355140100 + 12237172359889 = 5307010^2 + 3498167^2 .

It is a cyclic number.

It is not a de Polignac number, because 40401527499989 - 2⁴ = 40401527499973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401527499959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200763749994 + 20200763749995.

It is an arithmetic number, because the mean of its divisors is an integer number (20200763749995).

Almost surely, 2^{40401527499989} is an apocalyptic number.

It is an amenable number.

40401527499989 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401527499989 is an equidigital number, since it uses as much as digits as its factorization.

40401527499989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 71.

The spelling of 40401527499989 in words is "forty trillion, four hundred one billion, five hundred twenty-seven million, four hundred ninety-nine thousand, nine hundred eighty-nine".