2077749470378 has 4 divisors (see below), whose sum is σ = 3116624205570. Its totient is φ = 1038874735188.

The previous prime is 2077749470371. The next prime is 2077749470389. The reversal of 2077749470378 is 8730749477702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1947495607729 + 130253862649 = 1395527^2 + 360907^2 .

It is not an unprimeable number, because it can be changed into a prime (2077749470371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519437367593 + ... + 519437367596.

Almost surely, 2^{2077749470378} is an apocalyptic number.

2077749470378 is a deficient number, since it is larger than the sum of its proper divisors (1038874735192).

2077749470378 is a wasteful number, since it uses less digits than its factorization.

2077749470378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038874735191.

The product of its (nonzero) digits is 116169984, while the sum is 65.

The spelling of 2077749470378 in words is "two trillion, seventy-seven billion, seven hundred forty-nine million, four hundred seventy thousand, three hundred seventy-eight".