40681021273967 has 2 divisors, whose sum is σ = 40681021273968. Its totient is φ = 40681021273966.

The previous prime is 40681021273927. The next prime is 40681021273973. The reversal of 40681021273967 is 76937212018604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40681021273967 - 2³⁴ = 40663841404783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40681021273927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20340510636983 + 20340510636984.

It is an arithmetic number, because the mean of its divisors is an integer number (20340510636984).

Almost surely, 2^{40681021273967} is an apocalyptic number.

40681021273967 is a deficient number, since it is larger than the sum of its proper divisors (1).

40681021273967 is an equidigital number, since it uses as much as digits as its factorization.

40681021273967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 40681021273967 in words is "forty trillion, six hundred eighty-one billion, twenty-one million, two hundred seventy-three thousand, nine hundred sixty-seven".