1262752640140 has 48 divisors (see below), whose sum is σ = 2658225366720. Its totient is φ = 503874049280.

The previous prime is 1262752640137. The next prime is 1262752640141. The reversal of 1262752640140 is 410462572621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1262752640093 and 1262752640102.

It is not an unprimeable number, because it can be changed into a prime (1262752640141) 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, 40303401 + ... + 40334719.

It is an arithmetic number, because the mean of its divisors is an integer number (55379695140).

Almost surely, 2^{1262752640140} is an apocalyptic number.

1262752640140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1262752640140 is an abundant number, since it is smaller than the sum of its proper divisors (1395472726580).

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

1262752640140 is a wasteful number, since it uses less digits than its factorization.

1262752640140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36162 (or 36160 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 1262752640140 in words is "one trillion, two hundred sixty-two billion, seven hundred fifty-two million, six hundred forty thousand, one hundred forty".