2951219783381 has 2 divisors, whose sum is σ = 2951219783382. Its totient is φ = 2951219783380.

The previous prime is 2951219783377. The next prime is 2951219783429. The reversal of 2951219783381 is 1833879121592.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2626814355025 + 324405428356 = 1620745^2 + 569566^2 .

It is a cyclic number.

It is not a de Polignac number, because 2951219783381 - 2² = 2951219783377 is a prime.

It is a super-2 number, since 2×2951219783381² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2951219783381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2951219783311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1475609891690 + 1475609891691.

It is an arithmetic number, because the mean of its divisors is an integer number (1475609891691).

Almost surely, 2^{2951219783381} is an apocalyptic number.

It is an amenable number.

2951219783381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2951219783381 is an equidigital number, since it uses as much as digits as its factorization.

2951219783381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 59.

The spelling of 2951219783381 in words is "two trillion, nine hundred fifty-one billion, two hundred nineteen million, seven hundred eighty-three thousand, three hundred eighty-one".