2581630749070 has 32 divisors (see below), whose sum is σ = 4758737983488. Its totient is φ = 1007927007648.

The previous prime is 2581630749059. The next prime is 2581630749119. The reversal of 2581630749070 is 709470361852.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2581630748999 and 2581630749017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7310932 + ... + 7655911.

It is an arithmetic number, because the mean of its divisors is an integer number (148710561984).

It is a 1-persistent number, because it is pandigital, but 2⋅2581630749070 = 5163261498140 is not.

Almost surely, 2^{2581630749070} is an apocalyptic number.

2581630749070 is a deficient number, since it is larger than the sum of its proper divisors (2177107234418).

2581630749070 is a wasteful number, since it uses less digits than its factorization.

2581630749070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14967264.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 2581630749070 in words is "two trillion, five hundred eighty-one billion, six hundred thirty million, seven hundred forty-nine thousand, seventy".