1951940103042 has 16 divisors (see below), whose sum is σ = 3903899765760. Its totient is φ = 650643441072.

The previous prime is 1951940103041. The next prime is 1951940103053. The reversal of 1951940103042 is 2403010491591.

It is a super-2 number, since 2×1951940103042² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1951940103041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698559 + ... + 2095677.

It is an arithmetic number, because the mean of its divisors is an integer number (243993735360).

Almost surely, 2^{1951940103042} is an apocalyptic number.

It is a pronic number, being equal to 1397118×1397119.

1951940103042 is an abundant number, since it is smaller than the sum of its proper divisors (1951959662718).

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

1951940103042 is a wasteful number, since it uses less digits than its factorization.

1951940103042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629977.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 1951940103042 in words is "one trillion, nine hundred fifty-one billion, nine hundred forty million, one hundred three thousand, forty-two".