19956460467 has 4 divisors (see below), whose sum is σ = 26608613960. Its totient is φ = 13304306976.

The previous prime is 19956460451. The next prime is 19956460471. The reversal of 19956460467 is 76406465991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76406465991 = 3 ⋅25468821997.

It is not a de Polignac number, because 19956460467 - 2⁴ = 19956460451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19956460567) 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, 3326076742 + ... + 3326076747.

It is an arithmetic number, because the mean of its divisors is an integer number (6652153490).

Almost surely, 2^19956460467 is an apocalyptic number.

19956460467 is a deficient number, since it is larger than the sum of its proper divisors (6652153493).

19956460467 is an equidigital number, since it uses as much as digits as its factorization.

19956460467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652153492.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 19956460467 in words is "nineteen billion, nine hundred fifty-six million, four hundred sixty thousand, four hundred sixty-seven".