42015455511077 has 2 divisors, whose sum is σ = 42015455511078. Its totient is φ = 42015455511076.

The previous prime is 42015455511031. The next prime is 42015455511089. The reversal of 42015455511077 is 77011555451024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34471940580961 + 7543514930116 = 5871281^2 + 2746546^2 .

It is a cyclic number.

It is not a de Polignac number, because 42015455511077 - 2⁴⁰ = 40915943883301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42015455511677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007727755538 + 21007727755539.

It is an arithmetic number, because the mean of its divisors is an integer number (21007727755539).

Almost surely, 2^{42015455511077} is an apocalyptic number.

It is an amenable number.

42015455511077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015455511077 is an equidigital number, since it uses as much as digits as its factorization.

42015455511077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 980000, while the sum is 47.

The spelling of 42015455511077 in words is "forty-two trillion, fifteen billion, four hundred fifty-five million, five hundred eleven thousand, seventy-seven".