149676676517 has 2 divisors, whose sum is σ = 149676676518. Its totient is φ = 149676676516.

The previous prime is 149676676397. The next prime is 149676676543. The reversal of 149676676517 is 715676676941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77506003201 + 72170673316 = 278399^2 + 268646^2 .

It is an emirp because it is prime and its reverse (715676676941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149676676517 - 2¹⁶ = 149676610981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149676676577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74838338258 + 74838338259.

It is an arithmetic number, because the mean of its divisors is an integer number (74838338259).

Almost surely, 2^149676676517 is an apocalyptic number.

It is an amenable number.

149676676517 is a deficient number, since it is larger than the sum of its proper divisors (1).

149676676517 is an equidigital number, since it uses as much as digits as its factorization.

149676676517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80015040, while the sum is 65.

The spelling of 149676676517 in words is "one hundred forty-nine billion, six hundred seventy-six million, six hundred seventy-six thousand, five hundred seventeen".