10274533987 has 4 divisors (see below), whose sum is σ = 10721252880. Its totient is φ = 9827815096.

The previous prime is 10274533979. The next prime is 10274534003. The reversal of 10274533987 is 78933547201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78933547201 = 16453 ⋅4797517.

It is a cyclic number.

It is not a de Polignac number, because 10274533987 - 2³ = 10274533979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10274533987.

It is not an unprimeable number, because it can be changed into a prime (10274533487) 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, 223359412 + ... + 223359457.

It is an arithmetic number, because the mean of its divisors is an integer number (2680313220).

Almost surely, 2^10274533987 is an apocalyptic number.

10274533987 is a deficient number, since it is larger than the sum of its proper divisors (446718893).

10274533987 is an equidigital number, since it uses as much as digits as its factorization.

10274533987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446718892.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 10274533987 in words is "ten billion, two hundred seventy-four million, five hundred thirty-three thousand, nine hundred eighty-seven".