149653632649 has 2 divisors, whose sum is σ = 149653632650. Its totient is φ = 149653632648.

The previous prime is 149653632643. The next prime is 149653632659. The reversal of 149653632649 is 946236356941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145585744249 + 4067888400 = 381557^2 + 63780^2 .

It is a cyclic number.

It is not a de Polignac number, because 149653632649 - 2⁹ = 149653632137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149653632593 and 149653632602.

It is not a weakly prime, because it can be changed into another prime (149653632643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74826816324 + 74826816325.

It is an arithmetic number, because the mean of its divisors is an integer number (74826816325).

Almost surely, 2^149653632649 is an apocalyptic number.

It is an amenable number.

149653632649 is a deficient number, since it is larger than the sum of its proper divisors (1).

149653632649 is an equidigital number, since it uses as much as digits as its factorization.

149653632649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 58.

The spelling of 149653632649 in words is "one hundred forty-nine billion, six hundred fifty-three million, six hundred thirty-two thousand, six hundred forty-nine".