10215402046 has 4 divisors (see below), whose sum is σ = 15323103072. Its totient is φ = 5107701022.

The previous prime is 10215402023. The next prime is 10215402049. The reversal of 10215402046 is 64020451201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10215402046² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10215402046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215402049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553850510 + ... + 2553850513.

It is an arithmetic number, because the mean of its divisors is an integer number (3830775768).

Almost surely, 2^10215402046 is an apocalyptic number.

10215402046 is a deficient number, since it is larger than the sum of its proper divisors (5107701026).

10215402046 is an equidigital number, since it uses as much as digits as its factorization.

10215402046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107701025.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 10215402046 its reverse (64020451201), we get a palindrome (74235853247).

The spelling of 10215402046 in words is "ten billion, two hundred fifteen million, four hundred two thousand, forty-six".