2151298340426 has 24 divisors (see below), whose sum is σ = 3342557700300. Its totient is φ = 1038402723456.

The previous prime is 2151298340423. The next prime is 2151298340431. The reversal of 2151298340426 is 6240438921512.

It can be written as a sum of positive squares in 6 ways, for example, as 2092654453201 + 58643887225 = 1446601^2 + 242165^2 .

It is a super-2 number, since 2×2151298340426² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2151298340423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11596190 + ... + 11780246.

Almost surely, 2^{2151298340426} is an apocalyptic number.

2151298340426 is a deficient number, since it is larger than the sum of its proper divisors (1191259359874).

2151298340426 is a wasteful number, since it uses less digits than its factorization.

2151298340426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191066 (or 191037 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 2151298340426 in words is "two trillion, one hundred fifty-one billion, two hundred ninety-eight million, three hundred forty thousand, four hundred twenty-six".