142920011685 has 32 divisors (see below), whose sum is σ = 258062474880. Its totient is φ = 66905081600.

The previous prime is 142920011659. The next prime is 142920011753. The reversal of 142920011685 is 586110029241.

It is not a de Polignac number, because 142920011685 - 2¹¹ = 142920009637 is a prime.

It is a super-2 number, since 2×142920011685² (a number of 23 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 31 ways as a sum of consecutive naturals, for example, 14929386 + ... + 14938955.

It is an arithmetic number, because the mean of its divisors is an integer number (8064452340).

Almost surely, 2^142920011685 is an apocalyptic number.

142920011685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142920011685 is a deficient number, since it is larger than the sum of its proper divisors (115142463195).

142920011685 is a wasteful number, since it uses less digits than its factorization.

142920011685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29868389.

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 142920011685 in words is "one hundred forty-two billion, nine hundred twenty million, eleven thousand, six hundred eighty-five".