153077773346921 has 2 divisors, whose sum is σ = 153077773346922. Its totient is φ = 153077773346920.

The previous prime is 153077773346917. The next prime is 153077773346951. The reversal of 153077773346921 is 129643377770351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138938932519696 + 14138840827225 = 11787236^2 + 3760165^2 .

It is a cyclic number.

It is not a de Polignac number, because 153077773346921 - 2² = 153077773346917 is a prime.

It is not a weakly prime, because it can be changed into another prime (153077773346951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76538886673460 + 76538886673461.

It is an arithmetic number, because the mean of its divisors is an integer number (76538886673461).

Almost surely, 2^{153077773346921} is an apocalyptic number.

It is an amenable number.

153077773346921 is a deficient number, since it is larger than the sum of its proper divisors (1).

153077773346921 is an equidigital number, since it uses as much as digits as its factorization.

153077773346921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140026320, while the sum is 65.

The spelling of 153077773346921 in words is "one hundred fifty-three trillion, seventy-seven billion, seven hundred seventy-three million, three hundred forty-six thousand, nine hundred twenty-one".