1634261864411 has 4 divisors (see below), whose sum is σ = 1782831124824. Its totient is φ = 1485692604000.

The previous prime is 1634261864383. The next prime is 1634261864437. The reversal of 1634261864411 is 1144681624361.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1634261864411 - 2³⁴ = 1617081995227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1634261861411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74284630190 + ... + 74284630211.

It is an arithmetic number, because the mean of its divisors is an integer number (445707781206).

Almost surely, 2^{1634261864411} is an apocalyptic number.

1634261864411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1634261864411 is a deficient number, since it is larger than the sum of its proper divisors (148569260413).

1634261864411 is a wasteful number, since it uses less digits than its factorization.

1634261864411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148569260412.

The product of its digits is 663552, while the sum is 47.

The spelling of 1634261864411 in words is "one trillion, six hundred thirty-four billion, two hundred sixty-one million, eight hundred sixty-four thousand, four hundred eleven".