42670135763491 has 2 divisors, whose sum is σ = 42670135763492. Its totient is φ = 42670135763490.

The previous prime is 42670135763473. The next prime is 42670135763537. The reversal of 42670135763491 is 19436753107624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42670135763491 - 2⁵ = 42670135763459 is a prime.

It is not a weakly prime, because it can be changed into another prime (42670135763791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21335067881745 + 21335067881746.

It is an arithmetic number, because the mean of its divisors is an integer number (21335067881746).

Almost surely, 2^{42670135763491} is an apocalyptic number.

42670135763491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42670135763491 is an equidigital number, since it uses as much as digits as its factorization.

42670135763491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 42670135763491 in words is "forty-two trillion, six hundred seventy billion, one hundred thirty-five million, seven hundred sixty-three thousand, four hundred ninety-one".