10421770947 has 12 divisors (see below), whose sum is σ = 16164379656. Its totient is φ = 5955297600.

The previous prime is 10421770943. The next prime is 10421770963. The reversal of 10421770947 is 74907712401.

It is not a de Polignac number, because 10421770947 - 2² = 10421770943 is a prime.

It is a super-2 number, since 2×10421770947² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10421770899 and 10421770908.

It is not an unprimeable number, because it can be changed into a prime (10421770943) 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 11 ways as a sum of consecutive naturals, for example, 35448054 + ... + 35448347.

It is an arithmetic number, because the mean of its divisors is an integer number (1347031638).

Almost surely, 2^10421770947 is an apocalyptic number.

10421770947 is a deficient number, since it is larger than the sum of its proper divisors (5742608709).

10421770947 is an equidigital number, since it uses as much as digits as its factorization.

10421770947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70896418 (or 70896411 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The spelling of 10421770947 in words is "ten billion, four hundred twenty-one million, seven hundred seventy thousand, nine hundred forty-seven".