19970461431 has 6 divisors (see below), whose sum is σ = 28846222080. Its totient is φ = 13313640948.

The previous prime is 19970461409. The next prime is 19970461439. The reversal of 19970461431 is 13416407991.

It is a happy number.

19970461431 is a `hidden beast` number, since 1 + 99 + 70 + 4 + 61 + 431 = 666.

It is not a de Polignac number, because 19970461431 - 2²² = 19966267127 is a prime.

It is a super-2 number, since 2×19970461431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19970461439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1109470071 + ... + 1109470088.

It is an arithmetic number, because the mean of its divisors is an integer number (4807703680).

Almost surely, 2^19970461431 is an apocalyptic number.

19970461431 is a deficient number, since it is larger than the sum of its proper divisors (8875760649).

19970461431 is a wasteful number, since it uses less digits than its factorization.

19970461431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218940165 (or 2218940162 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19970461431 in words is "nineteen billion, nine hundred seventy million, four hundred sixty-one thousand, four hundred thirty-one".