1541820680451 has 24 divisors (see below), whose sum is σ = 2236560522560. Its totient is φ = 1023509876400.

The previous prime is 1541820680443. The next prime is 1541820680453. The reversal of 1541820680451 is 1540860281451.

1541820680451 is a `hidden beast` number, since 1 + 5 + 41 + 82 + 0 + 6 + 80 + 451 = 666.

It is not a de Polignac number, because 1541820680451 - 2³ = 1541820680443 is a prime.

It is a super-2 number, since 2×1541820680451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1541820680397 and 1541820680406.

It is not an unprimeable number, because it can be changed into a prime (1541820680453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2096880 + ... + 2735058.

Almost surely, 2^{1541820680451} is an apocalyptic number.

1541820680451 is a deficient number, since it is larger than the sum of its proper divisors (694739842109).

1541820680451 is a wasteful number, since it uses less digits than its factorization.

1541820680451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639327 (or 639324 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 1541820680451 in words is "one trillion, five hundred forty-one billion, eight hundred twenty million, six hundred eighty thousand, four hundred fifty-one".