135370869577 has 2 divisors, whose sum is σ = 135370869578. Its totient is φ = 135370869576.

The previous prime is 135370869553. The next prime is 135370869581. The reversal of 135370869577 is 775968073531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83414681856 + 51956187721 = 288816^2 + 227939^2 .

It is a cyclic number.

It is not a de Polignac number, because 135370869577 - 2⁷ = 135370869449 is a prime.

It is a super-4 number, since 4×135370869577⁴ (a number of 46 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (135370869527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67685434788 + 67685434789.

It is an arithmetic number, because the mean of its divisors is an integer number (67685434789).

Almost surely, 2^135370869577 is an apocalyptic number.

It is an amenable number.

135370869577 is a deficient number, since it is larger than the sum of its proper divisors (1).

135370869577 is an equidigital number, since it uses as much as digits as its factorization.

135370869577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33339600, while the sum is 61.

The spelling of 135370869577 in words is "one hundred thirty-five billion, three hundred seventy million, eight hundred sixty-nine thousand, five hundred seventy-seven".