1951955173151 has 2 divisors, whose sum is σ = 1951955173152. Its totient is φ = 1951955173150.

The previous prime is 1951955173121. The next prime is 1951955173159. The reversal of 1951955173151 is 1513715591591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1951955173151 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1951955173093 and 1951955173102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1951955173159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 975977586575 + 975977586576.

It is an arithmetic number, because the mean of its divisors is an integer number (975977586576).

Almost surely, 2^{1951955173151} is an apocalyptic number.

1951955173151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1951955173151 is an equidigital number, since it uses as much as digits as its factorization.

1951955173151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1063125, while the sum is 53.

The spelling of 1951955173151 in words is "one trillion, nine hundred fifty-one billion, nine hundred fifty-five million, one hundred seventy-three thousand, one hundred fifty-one".