26142278040 has 128 divisors (see below), whose sum is σ = 87257016000. Its totient is φ = 6961987584.

The previous prime is 26142277991. The next prime is 26142278089. The reversal of 26142278040 is 4087224162.

It is an interprime number because it is at equal distance from previous prime (26142277991) and next prime (26142278089).

It is a super-2 number, since 2×26142278040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26142277986 and 26142278004.

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, 814782 + ... + 846258.

Almost surely, 2^26142278040 is an apocalyptic number.

26142278040 is a gapful number since it is divisible by the number (20) 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 26142278040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43628508000).

26142278040 is an abundant number, since it is smaller than the sum of its proper divisors (61114737960).

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

26142278040 is a wasteful number, since it uses less digits than its factorization.

26142278040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32266 (or 32256 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 26142278040 in words is "twenty-six billion, one hundred forty-two million, two hundred seventy-eight thousand, forty".