1649011776740 has 48 divisors (see below), whose sum is σ = 3592966431600. Its totient is φ = 634969853952.

The previous prime is 1649011776701. The next prime is 1649011776781. The reversal of 1649011776740 is 476771109461.

It can be written as a sum of positive squares in 8 ways, for example, as 40878369856 + 1608133406884 = 202184^2 + 1268122^2 .

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, 4022825 + ... + 4413744.

It is an arithmetic number, because the mean of its divisors is an integer number (74853467325).

Almost surely, 2^{1649011776740} is an apocalyptic number.

1649011776740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1649011776740 is an abundant number, since it is smaller than the sum of its proper divisors (1943954654860).

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

1649011776740 is a wasteful number, since it uses less digits than its factorization.

1649011776740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8436944 (or 8436942 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 1649011776740 in words is "one trillion, six hundred forty-nine billion, eleven million, seven hundred seventy-six thousand, seven hundred forty".