13477911335778 has 64 divisors (see below), whose sum is σ = 27688039464960. Its totient is φ = 4371753278592.

The previous prime is 13477911335771. The next prime is 13477911335783. The reversal of 13477911335778 is 87753311977431.

It is a super-2 number, since 2×13477911335778² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13477911335771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49355118 + ... + 49627446.

It is an arithmetic number, because the mean of its divisors is an integer number (432625616640).

Almost surely, 2^{13477911335778} is an apocalyptic number.

13477911335778 is an abundant number, since it is smaller than the sum of its proper divisors (14210128129182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13477911335778 is a wasteful number, since it uses less digits than its factorization.

13477911335778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273391.

The product of its digits is 93350880, while the sum is 66.

The spelling of 13477911335778 in words is "thirteen trillion, four hundred seventy-seven billion, nine hundred eleven million, three hundred thirty-five thousand, seven hundred seventy-eight".