1025683971490 has 32 divisors (see below), whose sum is σ = 1909977226560. Its totient is φ = 396109022400.

The previous prime is 1025683971467. The next prime is 1025683971493. The reversal of 1025683971490 is 941793865201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1025683971493) 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, 8118505 + ... + 8243875.

It is an arithmetic number, because the mean of its divisors is an integer number (59686788330).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1025683971490 = 2051367942980, but 3⋅1025683971490 = 3077051914470 is not.

Almost surely, 2^{1025683971490} is an apocalyptic number.

1025683971490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1025683971490 is a deficient number, since it is larger than the sum of its proper divisors (884293255070).

1025683971490 is a wasteful number, since it uses less digits than its factorization.

1025683971490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153618.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1025683971490 in words is "one trillion, twenty-five billion, six hundred eighty-three million, nine hundred seventy-one thousand, four hundred ninety".