2621612256554 has 16 divisors (see below), whose sum is σ = 4064473461888. Its totient is φ = 1267459805472.

The previous prime is 2621612256541. The next prime is 2621612256587. The reversal of 2621612256554 is 4556522161262.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 2621612256499 and 2621612256508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168001187 + ... + 168016790.

It is an arithmetic number, because the mean of its divisors is an integer number (254029591368).

Almost surely, 2^{2621612256554} is an apocalyptic number.

2621612256554 is a deficient number, since it is larger than the sum of its proper divisors (1442861205334).

2621612256554 is a wasteful number, since it uses less digits than its factorization.

2621612256554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336018109.

The product of its digits is 1728000, while the sum is 47.

The spelling of 2621612256554 in words is "two trillion, six hundred twenty-one billion, six hundred twelve million, two hundred fifty-six thousand, five hundred fifty-four".