25343046340 has 36 divisors (see below), whose sum is σ = 55634956524. Its totient is φ = 9696465856.

The previous prime is 25343046307. The next prime is 25343046347. The reversal of 25343046340 is 4364034352.

It can be written as a sum of positive squares in 2 ways, for example, as 17832397444 + 7510648896 = 133538^2 + 86664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25343046296 and 25343046305.

It is not an unprimeable number, because it can be changed into a prime (25343046347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1187107 + ... + 1208266.

It is an arithmetic number, because the mean of its divisors is an integer number (1545415459).

Almost surely, 2^25343046340 is an apocalyptic number.

25343046340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25343046340 is an abundant number, since it is smaller than the sum of its proper divisors (30291910184).

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

25343046340 is a wasteful number, since it uses less digits than its factorization.

25343046340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395428 (or 2395403 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

The spelling of 25343046340 in words is "twenty-five billion, three hundred forty-three million, forty-six thousand, three hundred forty".