254015999987 has 2 divisors, whose sum is σ = 254015999988. Its totient is φ = 254015999986.

The previous prime is 254015999957. The next prime is 254016000013. The reversal of 254015999987 is 789999510452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254015999987 - 2²⁶ = 253948891123 is a prime.

It is not a weakly prime, because it can be changed into another prime (254015999917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127007999993 + 127007999994.

It is an arithmetic number, because the mean of its divisors is an integer number (127007999994).

Almost surely, 2^254015999987 is an apocalyptic number.

254015999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

254015999987 is an equidigital number, since it uses as much as digits as its factorization.

254015999987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73483200, while the sum is 68.

The spelling of 254015999987 in words is "two hundred fifty-four billion, fifteen million, nine hundred ninety-nine thousand, nine hundred eighty-seven".