10202987878 has 8 divisors (see below), whose sum is σ = 16109980920. Its totient is φ = 4832994240.

The previous prime is 10202987831. The next prime is 10202987891. The reversal of 10202987878 is 87878920201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10202987878² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134249803 + ... + 134249878.

It is an arithmetic number, because the mean of its divisors is an integer number (2013747615).

Almost surely, 2^10202987878 is an apocalyptic number.

10202987878 is a deficient number, since it is larger than the sum of its proper divisors (5906993042).

10202987878 is a wasteful number, since it uses less digits than its factorization.

10202987878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268499702.

The product of its (nonzero) digits is 903168, while the sum is 52.

The spelling of 10202987878 in words is "ten billion, two hundred two million, nine hundred eighty-seven thousand, eight hundred seventy-eight".