425139000040 has 64 divisors (see below), whose sum is σ = 976215058560. Its totient is φ = 166592375040.

The previous prime is 425139000031. The next prime is 425139000047. The reversal of 425139000040 is 40000931524.

It is a super-2 number, since 2×425139000040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425138999972 and 425139000008.

It is not an unprimeable number, because it can be changed into a prime (425139000047) 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, 30862 + ... + 922621.

It is an arithmetic number, because the mean of its divisors is an integer number (15253360290).

Almost surely, 2^425139000040 is an apocalyptic number.

425139000040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425139000040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488107529280).

425139000040 is an abundant number, since it is smaller than the sum of its proper divisors (551076058520).

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

425139000040 is a wasteful number, since it uses less digits than its factorization.

425139000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953722 (or 953718 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 425139000040 its reverse (40000931524), we get a palindrome (465139931564).

The spelling of 425139000040 in words is "four hundred twenty-five billion, one hundred thirty-nine million, forty", and thus it is an aban number.