2051251062492 has 48 divisors (see below), whose sum is σ = 4995852906240. Its totient is φ = 653825323008.

The previous prime is 2051251062481. The next prime is 2051251062521. The reversal of 2051251062492 is 2942601521502.

It is a self number, because there is not a number n which added to its sum of digits gives 2051251062492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197458 + ... + 2035065.

It is an arithmetic number, because the mean of its divisors is an integer number (104080268880).

Almost surely, 2^{2051251062492} is an apocalyptic number.

It is an amenable number.

2051251062492 is an abundant number, since it is smaller than the sum of its proper divisors (2944601843748).

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

2051251062492 is a wasteful number, since it uses less digits than its factorization.

2051251062492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235882 (or 2235880 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 2051251062492 its reverse (2942601521502), we get a palindrome (4993852583994).

The spelling of 2051251062492 in words is "two trillion, fifty-one billion, two hundred fifty-one million, sixty-two thousand, four hundred ninety-two".