10140427720 has 32 divisors (see below), whose sum is σ = 23190000120. Its totient is φ = 3989675520.

The previous prime is 10140427711. The next prime is 10140427729. The reversal of 10140427720 is 2772404101.

It is an interprime number because it is at equal distance from previous prime (10140427711) and next prime (10140427729).

It can be written as a sum of positive squares in 4 ways, for example, as 2788051204 + 7352376516 = 52802^2 + 85746^2 .

It is not an unprimeable number, because it can be changed into a prime (10140427729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075517 + ... + 2080396.

Almost surely, 2^10140427720 is an apocalyptic number.

10140427720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10140427720 is an abundant number, since it is smaller than the sum of its proper divisors (13049572400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10140427720 is a wasteful number, since it uses less digits than its factorization.

10140427720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155985 (or 4155981 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The spelling of 10140427720 in words is "ten billion, one hundred forty million, four hundred twenty-seven thousand, seven hundred twenty".