19134834740 has 48 divisors (see below), whose sum is σ = 45931463424. Its totient is φ = 6559392000.

The previous prime is 19134834703. The next prime is 19134834743. The reversal of 19134834740 is 4743843191.

It is a happy number.

It is a super-2 number, since 2×19134834740² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19134834691 and 19134834700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19134834743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583120 + ... + 1595160.

It is an arithmetic number, because the mean of its divisors is an integer number (956905488).

Almost surely, 2^19134834740 is an apocalyptic number.

19134834740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19134834740 is an abundant number, since it is smaller than the sum of its proper divisors (26796628684).

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

19134834740 is a wasteful number, since it uses less digits than its factorization.

19134834740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23408 (or 23406 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 19134834740 in words is "nineteen billion, one hundred thirty-four million, eight hundred thirty-four thousand, seven hundred forty".