77530543740 has 192 divisors, whose sum is σ = 275040904320. Its totient is φ = 17961799680.

The previous prime is 77530543733. The next prime is 77530543777. The reversal of 77530543740 is 4734503577.

77530543740 is a `hidden beast` number, since 7 + 7 + 5 + 30 + 543 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205491 + ... + 444170.

It is an arithmetic number, because the mean of its divisors is an integer number (1432504710).

Almost surely, 2^77530543740 is an apocalyptic number.

It is an amenable number.

77530543740 is an abundant number, since it is smaller than the sum of its proper divisors (197510360580).

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

77530543740 is a wasteful number, since it uses less digits than its factorization.

77530543740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649709 (or 649701 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 45.

The spelling of 77530543740 in words is "seventy-seven billion, five hundred thirty million, five hundred forty-three thousand, seven hundred forty".