1540196928031 has 4 divisors (see below), whose sum is σ = 1540511066512. Its totient is φ = 1539882789552.

The previous prime is 1540196928007. The next prime is 1540196928059. The reversal of 1540196928031 is 1308296910451.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1540196928031 - 2¹⁹ = 1540196403743 is a prime.

It is a super-2 number, since 2×1540196928031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540196908031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157061886 + ... + 157071691.

It is an arithmetic number, because the mean of its divisors is an integer number (385127766628).

Almost surely, 2^{1540196928031} is an apocalyptic number.

1540196928031 is a deficient number, since it is larger than the sum of its proper divisors (314138481).

1540196928031 is an equidigital number, since it uses as much as digits as its factorization.

1540196928031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314138480.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 1540196928031 in words is "one trillion, five hundred forty billion, one hundred ninety-six million, nine hundred twenty-eight thousand, thirty-one".