377578006649 has 4 divisors (see below), whose sum is σ = 384702120036. Its totient is φ = 370453893264.

The previous prime is 377578006613. The next prime is 377578006693. The reversal of 377578006649 is 946600875773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946600875773 = 7 ⋅135228696539.

It can be written as a sum of positive squares in 2 ways, for example, as 97994041600 + 279583965049 = 313040^2 + 528757^2 .

It is a cyclic number.

It is not a de Polignac number, because 377578006649 - 2²⁴ = 377561229433 is a prime.

It is a super-2 number, since 2×377578006649² (a number of 24 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 = 377578006591 and 377578006600.

It is not an unprimeable number, because it can be changed into a prime (377578006699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562056614 + ... + 3562056719.

It is an arithmetic number, because the mean of its divisors is an integer number (96175530009).

Almost surely, 2^377578006649 is an apocalyptic number.

It is an amenable number.

377578006649 is a deficient number, since it is larger than the sum of its proper divisors (7124113387).

377578006649 is an equidigital number, since it uses as much as digits as its factorization.

377578006649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124113386.

The product of its (nonzero) digits is 53343360, while the sum is 62.

The spelling of 377578006649 in words is "three hundred seventy-seven billion, five hundred seventy-eight million, six thousand, six hundred forty-nine".