10720019787 has 16 divisors (see below), whose sum is σ = 14520929280. Its totient is φ = 7033478400.

The previous prime is 10720019767. The next prime is 10720019789. The reversal of 10720019787 is 78791002701.

It is not a de Polignac number, because 10720019787 - 2¹¹ = 10720017739 is a prime.

It is a super-2 number, since 2×10720019787² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10720019789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987 + ... + 146427.

It is an arithmetic number, because the mean of its divisors is an integer number (907558080).

Almost surely, 2^10720019787 is an apocalyptic number.

10720019787 is a deficient number, since it is larger than the sum of its proper divisors (3800909493).

10720019787 is a wasteful number, since it uses less digits than its factorization.

10720019787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145834.

The product of its (nonzero) digits is 49392, while the sum is 42.

The spelling of 10720019787 in words is "ten billion, seven hundred twenty million, nineteen thousand, seven hundred eighty-seven".