19672376450 has 24 divisors (see below), whose sum is σ = 37579559412. Its totient is φ = 7656275520.

The previous prime is 19672376443. The next prime is 19672376467. The reversal of 19672376450 is 5467327691.

It can be written as a sum of positive squares in 6 ways, for example, as 12606124729 + 7066251721 = 112277^2 + 84061^2 .

It is a super-3 number, since 3×19672376450³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5315009 + ... + 5318708.

Almost surely, 2^19672376450 is an apocalyptic number.

19672376450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19672376450 is a deficient number, since it is larger than the sum of its proper divisors (17907182962).

19672376450 is a wasteful number, since it uses less digits than its factorization.

19672376450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10633766 (or 10633761 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 19672376450 in words is "nineteen billion, six hundred seventy-two million, three hundred seventy-six thousand, four hundred fifty".