10540799978 has 8 divisors (see below), whose sum is σ = 15886135200. Its totient is φ = 5245421580.

The previous prime is 10540799963. The next prime is 10540799989. The reversal of 10540799978 is 87999704501.

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

It is a super-2 number, since 2×10540799978² (a number of 21 digits) contains 22 as substring.

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, 12488678 + ... + 12489521.

It is an arithmetic number, because the mean of its divisors is an integer number (1985766900).

Almost surely, 2^10540799978 is an apocalyptic number.

10540799978 is a deficient number, since it is larger than the sum of its proper divisors (5345335222).

10540799978 is a wasteful number, since it uses less digits than its factorization.

10540799978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24978412.

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 10540799978 in words is "ten billion, five hundred forty million, seven hundred ninety-nine thousand, nine hundred seventy-eight".